2023

  1. ICD-10-CM Codes
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  2. I00-I99
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  3. I30-I5A
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  4. I48-
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  5. 2023 ICD-10-CM Diagnosis Code I48.20

2023 ICD-10-CM Diagnosis Code I48.20

Chronic atrial fibrillation, unspecified

    2020 - New Code 2021 2022 2023 Billable/Specific Code
  • I48.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM I48.20 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of I48.20 - other international versions of ICD-10 I48.20 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I48.20. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Chronic persistent atrial fibrillation (
    ICD-10-CM Diagnosis Code I48.19

    Other persistent atrial fibrillation

      2020 - New Code 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Chronic persistent atrial fibrillation
    • Persistent atrial fibrillation, NOS
    I48.19
    )
The following code(s) above I48.20 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I48.20:
  • I00-I99
    2023 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
ICD-10-CM I48.20 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 308 Cardiac arrhythmia and conduction disorders with mcc
  • 309 Cardiac arrhythmia and conduction disorders with cc
  • 310 Cardiac arrhythmia and conduction disorders without cc/mcc
Code History
  • 2020 (effective 10/1/2019): New code
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to I48.20:

ICD-10-CM Codes Adjacent To I48.20
I47.20 …… unspecified
I47.21 Torsades de pointes
I47.29 Other ventricular tachycardia
I47.9 Paroxysmal tachycardia, unspecified
I48 Atrial fibrillation and flutter
I48.0 Paroxysmal atrial fibrillation
I48.1 Persistent atrial fibrillation
I48.11 Longstanding persistent atrial fibrillation
I48.19 Other persistent atrial fibrillation
I48.2 Chronic atrial fibrillation
I48.20 …… unspecified
I48.21 Permanent atrial fibrillation
I48.3 Typical atrial flutter
I48.4 Atypical atrial flutter
I48.9 Unspecified atrial fibrillation and atrial flutter
I48.91 Unspecified atrial fibrillation
I48.92 Unspecified atrial flutter
I49 Other cardiac arrhythmias
I49.0 Ventricular fibrillation and flutter
I49.01 Ventricular fibrillation
I49.02 Ventricular flutter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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