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ICD-10-CM 2027 diagnosis code

I50.2Systolic (congestive) heart failure

Not billable — use a more specific code

I50.2 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I50.2

I50.2 is the ICD-10-CM diagnosis code for systolic (congestive) heart failure. It belongs to category I50 (heart failure), block I30-I5A (other forms of heart disease) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within I50 (heart failure), I50.2 is specifically for systolic (congestive) heart failure. Related codes cover left ventricular failure, unspecified (I50.1), diastolic (congestive) heart failure (I50.3), combined systolic (congestive) and diastolic (congestive) heart failure (I50.4), other heart failure (I50.8) and unspecified (I50.9).

To report this condition, pick the subcode that matches the documentation: I50.20 (failure), I50.21 (failure), I50.22 (failure) and I50.23 (failure).

Don't report I50.2 together with the conditions in its Excludes1 note: combined systolic (congestive) and diastolic (congestive) heart failure (I50.4-).

Code first: 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-) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under I50.2

Coding notes

Applicable toConditions and synonyms classified to this code
  • Heart failure with reduced ejection fraction [HFrEF]
  • Systolic left ventricular heart failure
Excludes1Not coded here — never report together with this code
  • combined systolic (congestive) and diastolic (congestive) heart failure (I50.4-)
Code alsoTwo codes may be needed; sequencing depends on circumstances
  • end stage heart failure, if applicable (I50.84)

Notes that apply from higher levels

Instructions written at a parent level also apply to I50.2.

› From I50 Heart failure
Excludes2
  • cardiac arrest (I46.-)
  • neonatal cardiac failure (P29.0)
Code first
  • 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)

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Codes whose notes reference I50.2

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I50.2

Is I50.2 billable?

No. I50.2 is a header code. Report one of its more specific subcodes instead.