ICD-10-CM 2027
ICD-10 code for cardiac paralysis
From the official ICD-10-CM alphabetic index entry “Paralysis, paralytic (complete) (incomplete) › cardiac”. Page updated September 29, 2026.
About coding cardiac paralysis
The ICD-10-CM code for cardiac paralysis is I50.9 (Heart failure, unspecified).
Within I50, choose I50.9 (unspecified) 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 other heart failure (I50.8).
The conditions in its Excludes2 note aren't part of I50.9, but may be coded alongside it if the patient has both: fluid overload unrelated to congestive heart failure (E87.70).
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.
Common questions about cardiac paralysis ICD-10 codes
What is the ICD-10 code for cardiac paralysis?
- I50.9 — Heart failure, unspecified.
Is I50.9 billable?
- Yes. I50.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I50.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I50.9 as a principal diagnosis.
Is I50.9 a CC or MCC?
- No. I50.9 is neither a CC nor an MCC under MS-DRG v44.0.