ICD-10 Code I50.9: Heart failure, unspecified
Diseases of the circulatory system
ICD-10 code I50.9 identifies unspecified heart failure without specification of type or acuity.
Coding guidance
The I50 category distinguishes systolic (I50.2-), diastolic (I50.3-) and combined (I50.4-) heart failure.
Each further specifies acute, chronic, or acute on chronic status.
I50.9 is the least specific option and reduces both clinical clarity and risk-adjustment accuracy.
Documentation and specificity notes
- Document heart failure type and acuity to support specific coding.
- Specify systolic, diastolic or combined based on ejection fraction.
- Heart failure is a high-weight risk-adjustment condition requiring annual recapture.
Related codes
This page provides a general summary for educational purposes and is not a substitute for the official ICD-10-CM code set, the ICD-10-CM Official Guidelines for Coding and Reporting, or payer policy. Code sets are updated annually, verify against the current official release before billing.
FAQ
ICD-10 I50.9, frequently asked questions questions
- What is ICD-10 code I50.9?
- ICD-10 code I50.9 identifies unspecified heart failure without specification of type or acuity.
- Is I50.9 a billable ICD-10 code?
- Yes. I50.9 is a billable and specific ICD-10-CM code that may be used to indicate a diagnosis for reimbursement purposes, provided documentation supports it.
- What documentation supports I50.9?
- Document heart failure type and acuity to support specific coding. Specify systolic, diastolic or combined based on ejection fraction. Heart failure is a high-weight risk-adjustment condition requiring annual recapture.
We're here to help
Ready to see what your revenue cycle could be doing?
Start wherever makes sense: a demo, a free assessment, or a straight conversation with someone who does this every day.