2021 ICD-10-CM Codes for Heart failure (I50)

Instructional Notations

Code First Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first 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. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • heart failure complicating abortion or ectopic or molar pregnancy O00 O07 O08.8
  • heart failure due to hypertension I11.0
  • heart failure due to hypertension with chronic kidney disease I13
  • heart failure following surgery I97.13
  • obstetric surgery and procedures O75.4
  • rheumatic heart failure I09.81

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • neonatal cardiac failure P29.0

Type 2 Excludes Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • cardiac arrest I46
    • ICD-10 Index

      • Diseases of the circulatory system (I00–I99)

        • Other forms of heart disease (I30-I52)

            • Heart failure (I50)
            • I50 - Heart failure NON-BILLABLE CODE
            • I50.1 - Left ventricular failure, unspecified BILLABLE CODE
            • I50.2 - Systolic (congestive) heart failure NON-BILLABLE CODE
            • I50.20 - Unspecified systolic (congestive) heart failure BILLABLE CODE
            • I50.21 - Acute systolic (congestive) heart failure BILLABLE CODE
            • I50.22 - Chronic systolic (congestive) heart failure BILLABLE CODE
            • I50.23 - Acute on chronic systolic (congestive) heart failure BILLABLE CODE
            • I50.3 - Diastolic (congestive) heart failure NON-BILLABLE CODE
            • I50.30 - Unspecified diastolic (congestive) heart failure BILLABLE CODE
            • I50.31 - Acute diastolic (congestive) heart failure BILLABLE CODE
            • I50.32 - Chronic diastolic (congestive) heart failure BILLABLE CODE
            • I50.33 - Acute on chronic diastolic (congestive) heart failure BILLABLE CODE
            • I50.4 - Combined systolic and diastolic (congestive) hrt fail NON-BILLABLE CODE
            • I50.40 - Unsp combined systolic and diastolic (congestive) hrt fail BILLABLE CODE
            • I50.41 - Acute combined systolic and diastolic (congestive) hrt fail BILLABLE CODE
            • I50.42 - Chronic combined systolic and diastolic hrt fail BILLABLE CODE
            • I50.43 - Acute on chronic combined systolic and diastolic hrt fail BILLABLE CODE
            • I50.8 - Other heart failure NON-BILLABLE CODE
            • I50.81 - Right heart failure NON-BILLABLE CODE
            • I50.810 - Right heart failure, unspecified BILLABLE CODE
            • I50.811 - Acute right heart failure BILLABLE CODE
            • I50.812 - Chronic right heart failure BILLABLE CODE
            • I50.813 - Acute on chronic right heart failure BILLABLE CODE
            • I50.814 - Right heart failure due to left heart failure BILLABLE CODE
            • I50.82 - Biventricular heart failure BILLABLE CODE
            • I50.83 - High output heart failure BILLABLE CODE
            • I50.84 - End stage heart failure BILLABLE CODE
            • I50.89 - Other heart failure BILLABLE CODE
            • I50.9 - Heart failure, unspecified BILLABLE CODE