the use additional code instructional note _____.. 83) Use additional code to identify: chronic total occlusion of coronary artery (I25. the use additional code instructional note _____.

 
83) Use additional code to identify: chronic total occlusion of coronary artery (I25the  use additional code  instructional note _____.  You must use the applicable 7th character for all ICD-10-CM codes within the category or as notes in the Tabular List instruct

It instructs you to code first underlying disease, which in this case, is the cirrhosis of the liver from the alcohol. 42 is a valid billable ICD-10 diagnosis code for Type 2 diabetes mellitus with diabetic polyneuropathy . These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. Codes from category 438 may be assigned on a health care record with codes from 430-437, if the patient has a current CVA and deficits from an old CVA. ( True/False) Question 2. The additional code is always listed after the primary code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. This note indicates that an additional code should be used, if available. a. Use Additional Code. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. 1 is a valid billable ICD-10 diagnosis code for Postlaminectomy syndrome, not elsewhere classified . sometimes used to inform, describe circumstances or give additional information about a term or. Alphabetic Index. The instructional notes include terms and diagnoses included and excluded for each code. More Coding Conventions. When you see a “use additional code” note, followed by a list of codes, in the Alphabetic Index, you know to. “Code first” and “Use additional code” notes are also used in. BracketsCode Also Instructional Note The Code Also note is used in ICD-10-CM to instruct the coder that two codes may be needed to fully code a diagnostic phrase. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. 0 is a valid billable ICD-10 diagnosis code for Abdominal distension (gaseous) . In addition, if an index entry requires more than one line. Code if applicable, any casual condition. - or I51. "Code first" notes are also under certain codes that are not specifically manifestation codes but may be due to an underlying cause. F10. You should never use the exculde1 code at the same time as the code above Excludes1 notes. 0 Rationale: Look in the ICD-10-CM Alphabetic Index for Nausea. CPC Prep Course Chapter 3 Notes. . The use of ICD-10 code E86. In most cases the manifestation codes will have in the code title, "in diseases. These conventions are incorporated within the Alphabetic Index and Tabular List of ICD-10-CM as instructional notes. When there is a "code first" note and an underlying. but provide additional instruction. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. 12. Z98. The definition can be found under number 12A, pg. It's in Section I. This notation indicates that use of an additional. 6. The additional code is always listed after the primary code. , specific ear diseases) may be more extensive, contain additional . ↓ See below for any exclusions, inclusions or special notations. F33. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . 0. In most cases the manifestation codes will have in the code title, “in. The etiology code will have a “use additional code” note The manifestation code will have a “code first” note In most cases, “in disease classified elsewhere” will be in the code manifestation title The code title indicates a manifestation code “In diseases classified elsewhere” codes are not to be used as first-listed or. Another important instructional note is “Use additional code,” which can lead to querying for clarification of organ dysfunction that may be present, see the. Correct Answer : Add an additional character to the code . 2 25 Excludes _____ note is used when two conditions cannot be used together. Instructional notes appear in both the Tabular List and Alphabetic Index of ICD-10-CM. precalculus. In the tabular list, code first and use additional code instructional notes indicate the proper sequencing order of what conditions Certain conditions that have both an underlying etiology and multiple body system manifestations due to the underlying etiology instructional notes indicate a proper sequencing order of these conditions etiology. N30. E26. 5. 2. Use additional code *indicates that an additional code should be used, if available *additional code is always listed after the primary code. If a code. Wherever such a combination exists, there is a ‘use additional code’ note at the etiology code, and a ‘code first’ note at the manifestation code. 1–N18. 00 is found in the ICD-10-CM chapter entitled _____. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. K90. N52. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. that it is a pure excludes note. QUESTION 1 4 points Sa In the ICD 10 CM manual which type of instructional note is used in the Tabular List of Diseases to identify a. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. A. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. Code first any follow-up examination after treatment of malignant neoplasm (Z08). ) Assign combination codes when available. In most cases the manifestation codes will have in the code title, "in diseases. R10. Often, instructions appear in one place, but aren’t repeated by each code,” said. Standard Coding Process (4)A benign neoplasm is a (n): H66. 11 is a valid billable ICD-10 diagnosis code for Chronic respiratory failure with hypoxia . In the Tabular List, the 6th character 2 is selected to specify the left ovary. A. The instructional note “Use additional code” (B95–B97) is found in the Tabular List of ICD- 10-CM under Code N39. The “use additional code” note appears with the code for toxic shock syndrome because it is an infectious disease code that does not identify the specific bacterial or viral organism that caused it,. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . In most cases, the manifestation codes will have in the code title “in. The "code first" note is. tracheobronchitis to bronchitis in. ‐) tobacco use (Z72. 0) 11The “code first” note is your hint that two codes may be needed, along with sequencing direction. I am currently coding. 9 (Diabetes mellitus type 2 without complications) to code this diagnosis. , The Includes note is used to define, give examples, or both, of the content of a category of ICD-10-CM or of a block of category codes. In the tabular, code G31. For instance, if a patient has a diabetes, the coder may use the code E11. 891)The ICD-10-CM is divided into the Alphabetic Index, an alphabetical list of terms and their corresponding code, and the Tabular list, a chronological list of codes divided into chapters based on body system or condition. (See Appendix A, Section I. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These are sequencing instructions that must be followed. 0 to use an additional code to identify the Infectious organism. initial encounter. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . Code the following diagnosis: Fever. Table of Neoplasms. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. The diagnosis codes (Tabular List and Alphabetic Index) have been adopted under HIPAA for all healthcare settings. listed below certain codes in the index. The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. When a code does not exist that accurately describes the procedure/treatement, the coder should report an unlisted code. Instructional notes, punctuation marks, abbreviations, and symbols. c. The "use additional code" note is. However, if the coder also sees the instructional note of "Use an Additional Code" in the ICD 10 CM Code Book in the Tabular List, the coder would then also provide an additional code to provide. infection. R11. For such codes, there is a “use additional code” note at the etiology code and a “code first” note at the manifestation code and the rules for sequencing apply The Code Also note is used in ICD-10-CM to instruct the coder that two codes may be needed to fully code a diagnostic phrase. R50. There is an instructional note use additional code to identify organism. Excludes 1: atypical face pain due to fever and chills. Code First/Use Additional Code notes (etiology/manifestation paired codes) Certain conditions have both an underlying etiology and multiple body system. d. No additional code is necessary. Correctly use instructional terms and symbols as defined in the ICD-9-CM. defines and or gives examples of the content of a particular category. " Discuss whether or not it is correct to follow the instructional note below as written and assign A41. ↓ See below for any exclusions, inclusions or special notations. Select one: True False. Abbreviations The "Use additional code" _____. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. true. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. Coders will see the same “code first” instruction when looking at malignant ascites. CODING CONVENTIONS. c. appearing. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. C. There is a "Use Additional Code" notation at the etiology code and a "Code First" note at the manifestation code whenever such a combination exists. Identify the main term below that has an instructional note indicating another main term may need to be referenced providing an additional index entry to report the diagnostic code. Even with the availability of many combination codes, there are some subcategories that have a “Use additional code” instruction. What is the instruction provided in the note below code E10. ) Assign multiple codes when required (usually coder will be guided to do this by additional instructional notes in the ICD-9. Instructional notes appear in the Alphabetical Index and Tabular List • INCLUDES: This. false. 0. 4. Code Also –A “code also” note instructs that two codes may be required to fully describe a condition, but the sequencing of the two codes depends on the severity of the conditions and the reason for the encounter. Cholecystitis would be reported in the ICD-10-CM chapter entitled _____. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. 7, I51. It is necessary to go to the main term referenced with the "see" note to locate the correct code. Wherever such a combination exists, a Use additional code note is found with the etiology code, and a Code first note is found with the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. 2 also applies to the following:See” and “See Also” “Code also Note” Default codes Code assignment and Clinical Criteria Points to Remember -When selecting codes, the coder must follow all instructional notes present -Instructional notes, abbreviations, and punctuation provide direction to coders -When cross-references are present in the Index, the additional. When an "Includes" note appears after the start of a chapter, the note governs the entire chapter. M79. 9. ” The draft guidelines for ICD-10-CM do not require the additional code for this condition, but may require it when final guidelines are implemented. The official AHA publication for ICD-10-CM and ICD-10-PCS coding guidelines and advice. ↓ See below for any exclusions, inclusions or special notations. "Code first" notes are also under certain codes that are not specifically manifestation codes but may be due to an underlying cause. and more. Codes with this phrase are never used as a first-listed or principal diagnosis. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. 0 (paroxysmal atrial fibrillation) based on the instructional note to use an additional code to specify the. contain a use additional code instruction in the ICD-10-CM tabular list. In most cases the manifestation codes will have in the code title, "in diseases. Two “use additional code” notes appear to remind the coder to use an additional code to identify the infectious agent. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . The SEE ALSO instructional note. Appears in the Official Guidelines at I. 0 Acute cystitis . A commonly missed instructional note under N18. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. ↓ See below for any exclusions, inclusions or special notations. Best answers. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . 8x has a “use additional code to identify delirium and dementia w/with behavioral disturbance at the beginning of the G30/Alzheimer’s disease section. Most notable was the escalation of available diagnosis codes from 14,000 to 68,000 when ICD-10-CM was first initiated in 2015 (CMS, 2015). b. additional instruction. J96. Wherever such a combination exists there is a 'use additional code' note at the etiology code, and a 'code first' note at the manifestation code. 83) Use additional code to identify: chronic total occlusion of coronary artery (I25. 01-Use additional code to specify site and severity of ulcer (L97. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. 4 , N18. Example. True. Tuberculous erythema nodosum is coded to L52. ) Assign combination codes when available. b. 0. The coder must use the main term Infection, bacterial, as cause of disease classified, Klebsiella to locate the additional code of B96. i. 1. ) Courtesy of the Centers for Medicare & Medicaid Services, 3-1d See Also Instructional Note Another cross-reference note used in ICD-10-CM, the See Also note refers the coder to another location in the Alphabetic Index when the initial listing does not contain all the necessary information to. Use additional code. Multiple Codes. -). In most cases the manifestation codes will have in the code title, "in diseases. ICD-10-CM Official Guidelines for Coding and Reporting FY 2024 Page 8 of 120 5. When you look up this code in the Tabular List, you’ll find an instructional note to “Code also” adrenal adenoma (D35. conventions. -) Use additional code to identify stage of chronic kidney disease ( N18. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. are introduced by the word "includes" when placed at the beginning of a chapter or section. A “code first underlying disease” instructional note will appear with the. b. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . Chapter 1 of the ICD-10-CM guidelines provides incredibly detailed instruction on coding for sepsis, severe sepsis, and septic shock infections. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. 1 indicates if the documentation does not have a causal relationship between the hypertension and heart disease the conditions are coded separately. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. The Includes note is used to define, give examples, or both, of the content of a category. They may appear independently of each other or to designate certain etiology/manifestation paired codes. Make sure to review pairs of ‘Use additional code’ notes at the etiology code, and ‘Code first’ notes at the manifestation code to ensure proper sequencing order in the guidance,” Blanchard adds. when the note appears under a code, it is acceptable. Your Answer:true Modifiers are used to identify when no procedure is done. 00, N30. The placement of an Includes note signifies the section of the code book that the note. ICD-10-CM Coding Conventions The conventions for ICD-10-CM are the general rules for using the classification independent of the guidelines. are introduced by the word "includes" when placed at the beginning of a chapter or section. On the etiology side, the etiology/manifestation combination is signaled by the instructional note “use additional code,” present at the level of the category. In most cases the manifestation codes will have in the code title, "in diseases. A use additional code note is present at category D70 which instructs to “Use additional code for any associated: fever (R50. There are times when a single condition may require multiple coding. Codes mentioned in articles are linked to Code Information pages. Possible conventions to include with codes include the following: Notes: Extra information to define or clarify code choice. In most cases the manifestation codes will have in the code specific eye involved). In addition,. Square brackets are used in the Tabular List of Diseases to: To enclose alternative wordings, abbreviations, and explanatory phrases. In most cases, the manifestation codes will have in the code title, “in. 2 is a valid billable ICD-10 diagnosis code for Pelvic and perineal pain . R45. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. 6). ” Verified questions. The 7 th character must always be the 7 th character in the data field. Whenever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. 6 is a valid billable ICD-10 diagnosis code for Repeated falls . These instructional notes indicate the proper sequencing order of the codes: etiology, followed by manifestation. 001. Instructional notes indicate the proper sequencing order of these conditions-etiology (underlying condition) followed by manifestation. You will also find instructional notes that say code first or use additional code. These instructions signal the coder that an additional code should be reported to provide a more complete picture of that diagnosis. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. infection. ICD-10-CM Instructional Notes, Chapter 3 Two instructional notes appear with a code if the type of anemia is produced by either a poisoning or an adverse effect of a drug, such as-Code first _____ due to drug or toxin, if applicable (T36-T65), with fifth or sixth character 1-4 or 6-Use additional code for adverse effect, if applicable, to. At the beginning of Chapter 15 there is a note to use an additional code from Category Z3A Weeks of gestation, to identify the weeks of gestation for codes O00-O9A. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . 20 is assigned a tthe direction of the "use additional code to identify alcohol use and dependence (F10. This is where you may see a “Use additional” note, or a note that states “Code first”. Excludes 1: fever and chills. Adherence to these guidelines when assigning ICD-9-CM diagnosis and procedure codes is required under the Health Insurance Portability and Accountability Act (HIPAA). In most cases the manifestation codes will have in the code title, "in diseases. In most cases the manifestation codes will have in the code title, "in diseases. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. R91. ↓ See below for any exclusions, inclusions or special notations. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . In most cases the manifestation codes will have in the code title, "in diseases. Use additional code for any associated fecal incontinence ( R15 . 10 is a valid billable ICD-10 diagnosis code for Social phobia, unspecified . 8, B96. When there is a "Code first" note and an underlying condition is present the:-instructional note (Code first) should be followed. Good morning, I am wanting to clarify some red instructional notes in the code book. ↓ See below for any exclusions, inclusions or special notations. 4-I51. The code for alcohol dependence is located by indexing the main term "Alcoholism". Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. Coding Notes for Chapter 10 Chapter Notes: When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e. instructs the coder to use an additional code to identify the manifestation that is present. 13. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. ICD-10-CM code I25. true false Appendix C contains coding examples to assist in the selection of. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. ↓ See below for any exclusions, inclusions or special notations. Otoscopy confirmed acute infection of the canal, with erythema and pus in the canal noted on exam. Manifestation. M96. exists there is a 'use additional code' note at the etiology code, and a 'code first' note at the. "Code, if applicable, any causal condition first" note OD. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. ) Assign codes to the highest possible level of detail. Volume 3 procedure codes have been adopted for inpatient. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. In most cases the manifestation codes will have in the code title, 'in diseases. 15. Under the Main Term Diabetes in the Index, first-level subterms identify: The specific complication (s) with each type. R14. followed by the manifestation. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. A "use additional code" note will normally be found at the infectious disease code, indicating a need for the organism code to be added as a secondary code. Includes Note. conventions. 0 would be reported in chapter ____ of ICD-10-CM. Therefore, when a patient presents with an acute manifestation of COVID-19, such as pneumonia, code U07. Instructional notes indicate the proper sequencing order of these conditions-etiology (underlying condition) followed by manifestation. 89, I51. These instructions signal the coder that an additional code should be reported to provide a more complete picture of that diagnosis. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. a. urinary tract infectious organism of Klebsiella identified, the coder must follow the instructional note under N39. There is no information of the infectious agent and no additional code is reported. There is no mention of vomiting. 10. These instructional notes indicate the proper sequencing order of the codes, etiology flowed by. In most cases the manifestation codes will have in the code title, 'in diseases. E26. Wherever such a combination exists, there is a “use additional code” note at the etiology code, and a “code first” note at the manifestation code. D33. 4. 3) Rationale: A note under the code for type 2 DM with diabetic CKD instructs to use an additional code to identify the stage of CKD (N18. At the beginning of Chapter 15 there is a note to use an additional code from Category Z3A Weeks of gestation, to identify the weeks of gestation for codes O00-O9A. if instructional phrase or condition is found after main term or anatomical site has been mistakenly referenced instead of disorder or disease documented in diagnostic statement. 11, and reads: “A type 1 Excludes note is a pure excludes note. It is found in the 2024 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2023 - Sep 30, 2024 . 890 is exempt from POA reporting ( Present On Admission). 2 is classified says to use additional code to identify resistance to antimicrobial drugs (Z16. Instructional notes in the Alphabetic Index and the Tabular List guide coders when selecting ICD-10-CM codes by providing additional instructions. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. , The instructional note "INCLUDES" ________. 3. #1. 3 is exempt from POA reporting ( Present On Admission). and more. Appears in the Official Guidelines at I. b. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. 22 ? Type 1 diabetes mellitus with chronic kidney disease due to conditions. 22) history of tobacco use (Z87. 890. 6 %âãÏÓ 72708 0 obj > endobj 72713 0 obj >/Filter/FlateDecode/ID[1436CD2AA15C98D34D807083E14FC741>]/Index[72708 14]/Info 72707 0 R/Length 49/Prev 4862096. a list of abbreviations, punctuation, symbols, typefaces and instructional notes appearing int he beginning of ICD-9. b. However, in general, audiology related. “In diseases classified elsewhere“; never permitted to be used as first-listed/principal diagnosis codes; must be used in conjunction with an underlying condition code and must be listed following the underlying condition 4. Code First. 81). It is necessary to go to the main term referenced with the "see" note to locate the correct code. Instructional notes Punctuation marks Abbreviations Symbols. Which is not an instructional note under Transport Accidents? Use additional code to identify: failure to use seatbelt. 22)” applies to All codes in ICD-10-CM Chapter 10. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. detail to ensure the code assignment is not affected. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. contains the code that is to be. ICD-10-CM: type 2 DM with diabetic CKD (E11. The includes note is used to define, give examples, or both, of the content of a category of ICD-10-CM or of a block of category codes. * Because in ICD-10-CM coding coder first assi. The diagnosis codes (Tabular List and Alphabetic Index) have been adopted under HIPAA for all healthcare settings. 0 in the Tabular. J30. Use Addit ional Code and C ode First I nstru ction al Notes The Use Additional Code and the Code First notes appear in the Tabular section of ICD-10-CM and must always be followed. N18. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. A) Use "additional code" note. All codes in ICD-10-CM Chapter 10. 673 is a valid billable ICD-10 diagnosis code for Pain in unspecified foot . In most cases the manifestation codes will have in the. Not necessary Use Additional. Use Additional Code: Note at the etiology code to alert the coder that a manifestation code is needed. “See” and “See Also” –The “see” instruction following a main term in the And if you scroll down a little farther to N18. 40 is a valid billable ICD-10 diagnosis code for Major depressive disorder, recurrent, in remission, unspecified . Tabular List. 3. Look for Cirrhosis/liver/alcoholic and you are directed to K70. 3 is a valid billable ICD-10 diagnosis code for Pseudocyst of pancreas . use additional code for any associated physical or developmental disorders. 22) •History of tobacco use (Z87. Use additional Characters (red. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In ICD-10-CM there are no supplementary classifications. N52. These instructional notes indicate the proper sequencing order of the codes: etiology, followed by manifestation. . coli] since there is a “use additional code” note under code N39. ‐) tobacco use (Z72. 22? “Use additional code” to identify stage of chronic kidney disease (N18. E86. Look at code E10. By understanding how to use instructional notes, coders can ensure that they select the correct codes for a. These notes are used to signal that, when there is an underlying etiology and multiple body system manifestation due to the underlying etiology, two codes are needed.