ICD-10-CM 2027
ICD-10 code for cardiac ascites
From the official ICD-10-CM alphabetic index entry “Ascites (abdominal) › cardiac”. Page updated September 29, 2026.
About coding cardiac ascites
The ICD-10-CM code for cardiac ascites is I50.810 (Right heart failure, unspecified).
Within I50.81, choose I50.810 (unspecified) only when documentation doesn't support a more specific option: acute right heart failure (I50.811), chronic right heart failure (I50.812), acute on chronic right heart failure (I50.813) and due to left heart failure (I50.814).
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 is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about cardiac ascites ICD-10 codes
What is the ICD-10 code for cardiac ascites?
- I50.810 — Right heart failure, unspecified.
Is I50.810 billable?
- Yes. I50.810 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I50.810 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I50.810 as a principal diagnosis.
Is I50.810 a CC or MCC?
- No. I50.810 is neither a CC nor an MCC under MS-DRG v44.0.