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ICD-10-CM 2027 diagnosis code

I50.8Other heart failure

Not billable — use a more specific code

I50.8 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I50.8

I50.8 is the ICD-10-CM diagnosis code for other 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 5 subcodes must be used instead.

Within I50, choose I50.8 (Other heart failure) only when documentation doesn't support a more specific option: left ventricular failure, unspecified (I50.1), systolic (congestive) heart failure (I50.2), diastolic (congestive) heart failure (I50.3), combined systolic (congestive) and diastolic (congestive) heart failure (I50.4) and unspecified (I50.9).

To report this condition, pick the subcode that matches the documentation: I50.81 (failure), I50.82 (failure), I50.83 (failure), I50.84 (failure) and I50.89 (failure).

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 was added in FY2018, effective October 1, 2017.

Specific codes under I50.8

Notes that apply from higher levels

Instructions written at a parent level also apply to I50.8.

› 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.

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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about I50.8

Is I50.8 billable?

No. I50.8 is a header code. Report one of its more specific subcodes instead.