What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes heart failure or impaired cardiac pumping function. The most accurate code depends on whether the record identifies the heart-failure type, side, acuity, or ejection-fraction context.
When is it used?
- May be used when a clinician documents heart failure in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
đź©şClinical context
When commonly used
- Emergency, inpatient, cardiology, and chronic-disease documentation where fluid overload, reduced cardiac function, or decompensation is part of the active problem list.
- Risk-adjustment, utilization-review, and follow-up workflows where heart-failure specificity affects longitudinal care planning and treatment review.
Common management context
- Heart-failure follow-up often includes symptom review, volume-status assessment, medication reconciliation, cardiac imaging context, and monitoring for worsening congestion or reduced function.
- Documentation usually becomes more specific when the chart identifies systolic or diastolic dysfunction, acute versus chronic status, left or right-sided failure, or reduced ejection fraction.
- Specialist context already linked on this page includes Cardiologist, General Physician, ENT Specialist.
🔍Key distinctions
Important notes
- ICD-10 heart-failure coding is often more specific when the record identifies acute, chronic, combined, systolic, diastolic, or side-specific heart failure detail.
- Heart failure may coexist with hypertension, valvular disease, kidney disease, arrhythmia, or ischemic disease, but related conditions may still require their own linked codes.
- This title reflects broad heart-failure language; if the chart clearly identifies acute, chronic, systolic, diastolic, or side-specific failure, a more specific code may be used.
Important exclusions
- cardiac arrest (I46.-)
- neonatal cardiac failure (P29.0)
Related codes to consider
I50.1Left ventricular failure, unspecified
Related heart-failure ICD-10 code; documentation often becomes more specific when the chart identifies acuity, systolic/diastolic type, or side-specific failure detail.
I50.9Heart failure, unspecified
Related heart-failure ICD-10 code; documentation often becomes more specific when the chart identifies acuity, systolic/diastolic type, or side-specific failure detail.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I30-I5AOther forms of heart disease
currentI30-I5A
Official coding notes
Applicable to
- 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)
Excludes2 (may code together if documented)
- 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)
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
CardiologistGeneral PhysicianENT Specialist
Sibling codes
I30Acute pericarditisI31Other diseases of pericardiumI32Pericarditis in diseases classified elsewherebillableI33Acute and subacute endocarditisI34Nonrheumatic mitral valve disordersI35Nonrheumatic aortic valve disordersI36Nonrheumatic tricuspid valve disordersI37Nonrheumatic pulmonary valve disordersI38Endocarditis, valve unspecifiedbillableI39Endocarditis and heart valve disorders in diseases classified elsewherebillableI40Acute myocarditisI41Myocarditis in diseases classified elsewherebillableI42CardiomyopathyI43Cardiomyopathy in diseases classified elsewherebillableI44Atrioventricular and left bundle-branch blockI45Other conduction disordersI46Cardiac arrestI47Paroxysmal tachycardiaI48Atrial fibrillation and flutterI49Other cardiac arrhythmiasI51Complications and ill-defined descriptions of heart diseaseI52Other heart disorders in diseases classified elsewherebillableI5ANon-ischemic myocardial injury (non-traumatic)billable
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
I50
Replacement codes
I50.1 — Left ventricular failure, unspecifiedI50.9 — Heart failure, unspecified
Common synonyms
Heart failure
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.