2020 ICD-10-CM Diagnosis Code I49.1

Atrial premature depolarization

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I49.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I49.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I49.1 - other international versions of ICD-10 I49.1 may differ.
Applicable To
  • Atrial premature beats
The following code(s) above I49.1 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 I49.1:
  • I00-I99
    2020 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
  • I49
    ICD-10-CM Diagnosis Code I49

    Other cardiac arrhythmias

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code First
    • cardiac arrhythmia complicating:
    • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
    • obstetric surgery and procedures (O75.4)
    Type 1 Excludes
    • neonatal dysrhythmia (P29.1-)
    • sinoatrial bradycardia (R00.1)
    • sinus bradycardia (R00.1)
    • vagal bradycardia (R00.1)
    Type 2 Excludes
    Other cardiac arrhythmias
Approximate Synonyms
  • Atrial premature beats
  • Premature atrial contraction
  • Supraventricular premature beats
Clinical Information
  • A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the heart ventricles. Atrial premature complexes are characterized by premature p waves on ecg which are different in configuration from the p waves generated by the normal pacemaker complex in the sinoatrial node.
  • Ectopic impulses originating in the atria.
ICD-10-CM I49.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 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

Convert I49.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to I49.1:
  • Beat(s)
    • premature I49.40
      ICD-10-CM Diagnosis Code I49.40

      Unspecified premature depolarization

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Premature beats NOS
      • atrial I49.1
      • auricular I49.1
      • supraventricular I49.1
    • atrial, premature I49.1
  • Contraction(s)
    • premature
      • atrium I49.1
      • supraventricular I49.1
  • Depolarization, premature I49.40
    ICD-10-CM Diagnosis Code I49.40

    Unspecified premature depolarization

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Premature beats NOS
    • atrial I49.1
  • Ectopic, ectopia (congenital)
    • beats I49.49
      ICD-10-CM Diagnosis Code I49.49

      Other premature depolarization

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Ectopic beats
      • Extrasystoles
      • Extrasystolic arrhythmias
      • Premature contractions
      • atrial I49.1
    • atrial beats I49.1
  • Extrasystoles (supraventricular) I49.49
    ICD-10-CM Diagnosis Code I49.49

    Other premature depolarization

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Ectopic beats
    • Extrasystoles
    • Extrasystolic arrhythmias
    • Premature contractions
    • atrial I49.1
    • auricular I49.1
  • Premature - see also condition
    • beats I49.40
      ICD-10-CM Diagnosis Code I49.40

      Unspecified premature depolarization

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Premature beats NOS
      • atrial I49.1
      • auricular I49.1
      • supraventricular I49.1
    • contraction
      • atrial I49.1
      • auricular I49.1

ICD-10-CM Codes Adjacent To I49.1
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
I49.1 Atrial premature depolarization
I49.2 Junctional premature depolarization
I49.3 Ventricular premature depolarization
I49.4 Other and unspecified premature depolarization
I49.40 Unspecified premature depolarization
I49.49 Other premature depolarization
I49.5 Sick sinus syndrome
I49.8 Other specified cardiac arrhythmias
I49.9 Cardiac arrhythmia, unspecified
I50 Heart failure
I50.1 Left ventricular failure, unspecified

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