I50.9
Heart failure, unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 13 never code together
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.-
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 9
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
I50.9code
Inclusion terms
- Cardiac, heart or myocardial failure NOS
- Congestive heart disease
- Congestive heart failure NOS
Index entries leading here 6
- Asthenia, asthenic R53.1
- Paralysis, paralytic (complete) (incomplete) G83.9
- cardiac I50.9
- Failure, failed
- cardiorenal (chronic) I50.9
- myocardial, myocardium I50.9
- heart (acute) (senile) (sudden) I50.9
- Note: heart failure stages A, B, C, and D are based on the American College of Cardiology and American Heart Association stages of heart failure, which complement and should not be confused with the New York Heart Association Classification of Heart Failure, into Class I, Class II, Class III, and Class IV
- ventricular I50.9
- Dysfunction
- Insufficiency, insufficient
- myocardial, myocardium (with arteriosclerosis) I50.9
- Syndrome — see also Disease
- low
- output (cardiac) I50.9
- low
Alongside this code 5 same parent — I50
Medications 2
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.