I50.33
Acute on chronic diastolic (congestive) heart failure
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 13 never code together
I50.3code
Excludes1
- combined systolic (congestive) and diastolic (congestive) heart failure (I50.4-)I50.4-
I00-I99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- transient cerebral ischemic attacks and related syndromes (G45.-)G45.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 10
I50code
Code first
- heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)O00-O07O08.8
- heart failure due to hypertension (I11.0)I11.0
- heart failure due to hypertension with chronic kidney disease (I13.-)I13.-
- heart failure following surgery (I97.13-)I97.13-
- obstetric surgery and procedures (O75.4)O75.4
- rheumatic heart failure (I09.81)I09.81
Index entries leading here 1
- Failure, failed
- heart (acute) (senile) (sudden) I50.9
Alongside this code 3 same parent — I50.3
Medications 3
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.