I51.9

I51.9: Heart disease, unspecified

Billable / specific codeICD-10-CM

I51.9 is a billable, specific ICD-10-CM code for heart disease, unspecified. It is valid for submission on a claim.

Check I51.9 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I51.9

Not part of this code, but both may be coded when both are present.

Written on I51: Complications and ill-defined descriptions of heart disease

heart disease specified as rheumatic (I00-I09)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I51.9 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56625Billing and Coding: Echocardiography
A56781Billing and Coding: Transthoracic Echocardiography (TTE)
A56943Billing and Coding: MolDX: Biomarkers in Cardiovascular Risk Assessment
A57037Billing and Coding: MolDX: Biomarkers in Cardiovascular Risk Assessment

Alphabetic index entries that lead here

Cardiopathy
Complication›heart
Disease, diseased›heart(organic)
Dysfunction›ventricular
Lesion›cardiac
Morbus›cordis
Disease, diseased›heart›cryptogenic

Code history

Unchanged in every release from FY2024 to FY2027.