I50.813 is the authoritative medical code for Acute on chronic right heart failure. This classification is used in medical billing and clinical recording to specify the clinical criteria for acute on chronic right heart failure (ICD-10-CM I50.813), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Acute on chronic right heart failure is a billable ICD-10-CM diagnosis code I50.813. Inclusion terms: Acute on chronic isolated right heart failure; Acute on chronic isolated right ventricular failure; Acute decompensation of chronic isolated right ventricular failure; Acute exacerbation of chronic isolated right ventricular failure. Excludes2 (not included here): cardiac arrest I46.-; neonatal cardiac failure P29.0. 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-; obstetric surgery and procedures O75.4; rheumatic heart failure I09.81.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for I50.813 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Acute on chronic isolated right heart failure
- Acute on chronic isolated right ventricular failure
- Acute decompensation of chronic isolated right ventricular failure
- Acute exacerbation of chronic isolated right ventricular failure
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- cardiac arrest I46.-
- neonatal cardiac failure P29.0
Code First
Underlying conditions that must be sequenced before this code.
- 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-
- obstetric surgery and procedures O75.4
- rheumatic heart failure I09.81
Frequently Asked Questions (FAQ) & Clinical Guidance
Can I50.813 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, I50.813 and the following are not considered part of each other and may both be reported when both conditions are present: cardiac arrest (I46.-); neonatal cardiac failure (P29.0).
Does I50.813 need to be sequenced after another code?
Yes. 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-).
What conditions are included under I50.813?
Acute on chronic right heart failure includes: Acute on chronic isolated right heart failure; Acute on chronic (isolated) right ventricular failure; Acute decompensation of chronic (isolated) right ventricular failure; Acute exacerbation of chronic (isolated) right ventricular failure.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to I50.813 in its code family, with their registry titles.
- I50 — Heart failure
- I50.1 — Left ventricular failure, unspecified
- I50.2 — Systolic (congestive) heart failure
- I50.20 — Unspecified systolic (congestive) heart failure
- I50.21 — Acute systolic (congestive) heart failure
- I50.22 — Chronic systolic (congestive) heart failure
- I50.23 — Acute on chronic systolic (congestive) heart failure
- I50.3 — Diastolic (congestive) heart failure
- I50.30 — Unspecified diastolic (congestive) heart failure
- I50.31 — Acute diastolic (congestive) heart failure
View all 28 codes in the I50 family
Indexed Clinical Terms (3)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Failure, failed, heart (acute) (senile) (sudden), right (isolated) (ventricular), acute, andchronic (on)
- Failure, failed, heart (acute) (senile) (sudden), right (isolated) (ventricular), chronic, and acute
- Failure, failed, heart (acute) (senile) (sudden), with, decompensation, right