ICD-10-CM 2027
ICD-10 code for Ridley's syndrome
From the official ICD-10-CM alphabetic index entry “Syndrome › Ridley's”. Page updated September 29, 2026.
About coding Ridley's syndrome
The ICD-10-CM code for Ridley's syndrome is I50.1 (Left ventricular failure, unspecified).
Within I50, choose I50.1 (Left ventricular failure, unspecified) only when documentation doesn't support a more specific option: systolic (congestive) heart failure (I50.2), 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).
Don't report I50.1 together with the conditions in its Excludes1 note: edema of lung without heart disease or heart failure (J81.-) and pulmonary edema without heart disease or failure (J81.-).
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.
Don't confuse with (Excludes1 for I50.1)
Common questions about Ridley's syndrome ICD-10 codes
What is the ICD-10 code for Ridley's syndrome?
- I50.1 — Left ventricular failure, unspecified.
Is I50.1 billable?
- Yes. I50.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I50.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I50.1 as a principal diagnosis.
Is I50.1 a CC or MCC?
- I50.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.