I50.9
BillableHeart failure, unspecified
Heart failure, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Cardiac, heart or myocardial failure NOS
- Congestive heart disease
- Congestive heart failure NOS
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
- •cardiac arrestI46
- •neonatal cardiac failureP29.0
- •fluid overload unrelated to congestive heart failureE87.70
Code First
The underlying condition must be sequenced before this code
Related Codes(5)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
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Also Known As / Clinical Terms(320)
SNOMED CT
- Diastolic dysfunction3545003
- Hypertensive heart disease with congestive heart failure5148006
- Acute congestive heart failure10633002
- Cardiac arrest following obstetric procedure16574001
- Low output heart failure25544003
- Obstetrical complication of anaesthesia AND/OR sedation29847008
- Obstetrical complication of anesthesia AND/OR sedation29847008
- Benign hypertensive heart disease36221001
- CCF - Congestive cardiac failure42343007
- CHF - Congestive heart failure42343007
- Congestive cardiac failure42343007
- Congestive heart disease42343007
- Congestive heart failure42343007
- Low cardiac output syndrome44088000
- Hypertensive heart failure46113002
- Chronic heart failure48447003
- Hypertensive renal failure49220004
- Malignant hypertensive heart disease54225002
- Cardiac failure following obstetric procedure55565007
- Heart failure following obstetric procedure55565007
- Acute heart failure56675007
- Cardiac insufficiency following cardiac surgery60856006
- Heart failure following cardiac surgery60856006
- Cardiac arrest AND/OR failure following anaesthesia AND/OR sedation in labour AND/OR delivery62657007
- Cardiac arrest AND/OR failure following anesthesia AND/OR sedation in labor AND/OR delivery62657007
- Cardiac disorder following anaesthesia AND/OR sedation in labour AND/OR delivery64171002
- Cardiac disorder following anesthesia AND/OR sedation in labor AND/OR delivery64171002
- Obstetrical cardiac complication of anaesthesia AND/OR sedation64171002
- Obstetrical cardiac complication of anesthesia AND/OR sedation64171002
- Congestive rheumatic heart failure82523003
- Malignant hypertensive heart disease with congestive cardiac failure83105008
- Malignant hypertensive heart disease with congestive heart failure83105008
- Cardiac failure84114007
- Cardiac insufficiency84114007
- HF - Heart failure84114007
- Heart failure84114007
- Myocardial failure84114007
- Weak heart84114007
- Chronic congestive heart failure88805009
- Cardiac edema89555002
- Cardiac oedema89555002
- Cardiac insufficiency during AND/OR resulting from a procedure89819002
- Heart failure during AND/OR resulting from a procedure89819002
- Pleural effusion due to congestive heart failure90727007
- Benign hypertensive heart disease with congestive cardiac failure194767001
- Hypertensive heart and renal disease with (congestive) heart failure194779001
- Hypertensive heart and renal disease with both (congestive) heart failure and renal failure194781004
- Decompensated cardiac failure195111005
- Compensated cardiac failure195112003
- Refractory heart failure314206003
- Disorder confirmed395098000
- Heart failure confirmed395105005
- Nail changes associated with systemic disease402629005
- Red half-moon nail403298007
- Red half-moon nail in congestive heart failure403298007
- Decompensated chronic heart failure424404003
- Congestive heart failure due to valvular disease426611007
- Cardiorenal syndrome445236007
- HFpEF - heart failure with preserved ejection fraction446221000
- Heart failure with normal ejection fraction446221000
- Heart failure with preserved ejection fraction446221000
- Heart failure due to end stage congenital heart disease471880001
- Acute exacerbation of chronic congestive heart failure698296002
- Acute on chronic congestive heart failure698296002
- Symptomatic congestive heart failure698594003
- HFrEF - heart failure with reduced ejection fraction703272007
- Heart failure with reduced ejection fraction703272007
- Heart failure with reduced ejection fraction due to coronary artery disease703273002
- Heart failure with reduced ejection fraction due to myocarditis703274008
- Heart failure with reduced ejection fraction due to cardiomyopathy703275009
- Heart failure with reduced ejection fraction due to heart valve disease703276005
- Congestive heart failure stage B717840005
- X-linked intellectual disability, cardiomegaly, congestive heart failure syndrome773587008
- Cardiac conduit complication871593005
- Complication due to cardiac conduit operation871593005
- Failure of Fontan type circulation871617000
- Low output heart failure due to and following Fontan operation871617000
- Heart failure due to thyrotoxicosis898208007
- Thyrotoxic heart failure898208007
- Heart disease due to thyrotoxicosis1003678001
- Normal cardiac function1148838007
- Cardiac arrest due to procedure1149361009
- Cardiac arrest during procedure1149362002
- Acute exacerbation of chronic heart failure1296659009
- Acute on chronic heart failure1296659009
- Acute heart failure co-occurrent with normal ejection fraction7421000175106
- Acute on chronic heart failure co-occurrent with normal ejection fraction7401000175100
- Cardiac arrhythmia during pregnancy72291000119104
- Cardiac arrhythmia in pregnancy72291000119104
- Chronic heart failure co-occurrent with normal ejection fraction7411000175102
- Congestive heart failure after cardiac surgery285211000119102
- Congestive heart failure as post-operative complication of cardiac surgery285211000119102
- Congestive heart failure following cardiac surgery285211000119102
- Congestive heart failure as early postoperative complication72481000119103
- Congestive heart failure as post-operative complication of non-cardiac surgery285221000119109
- Congestive heart failure due to cardiomyopathy101281000119107
- Congestive heart failure stage B due to ischaemic cardiomyopathy15629591000119103
- Congestive heart failure stage B due to ischemic cardiomyopathy15629591000119103
- Congestive heart failure stage C67441000119101
- Congestive heart failure stage C due to ischaemic cardiomyopathy15629541000119106
- Congestive heart failure stage C due to ischemic cardiomyopathy15629541000119106
- Congestive heart failure stage D67431000119105
- Exacerbation of congestive heart failure96311000119109
- Heart failure following administration of antineoplastic agent113901000052102
- Hypertensive heart AND chronic kidney disease with congestive heart failure15781000119107
- Normal cardiac ejection fraction435851000124107
- Pleural effusion due to another disorder15967221000119100
- Secondary pleural effusion15967221000119100
UMLS
- CCF - Congestive cardiac failureC0018802
- CHFC0018802
- CHF - Congestive heart failureC0018802
- Cardiac Failure CongestiveC0018802
- Cardiac failure congestiveC0018802
- Cardiac failure, congestiveC0018802
- Cardiac failuresC0018802
- Congestive Heart FailureC0018802
- Congestive cardiac failureC0018802
- Congestive heart diseaseC0018802
- Congestive heart failureC0018802
- Congestive heart failure (disorder)C0018802
- Congestive heart failure NOSC0018802
- Failure heart congestiveC0018802
- Heart Failure, CongestiveC0018802
- Heart failure, congestiveC0018802
- cardiac congestive failureC0018802
- cardiac failure congestiveC0018802
- ccfC0018802
- congestive cardiac failureC0018802
- congestive disease heartC0018802
- congestive diseases heartC0018802
- congestive failure heartC0018802
- congestive failure heartsC0018802
- congestive failures heartC0018802
- congestive heart diseaseC0018802
- congestive heart failureC0018802
- congestive heart failure (CHF)C0018802
- congestive heart failure chfC0018802
- disease congestive heartC0018802
- failure congestive heartC0018802
- heart congestive failureC0018802
- heart failure congestiveC0018802
- Cardiac FailureC0018801
- Cardiac failureC0018801
- Cardiac failure (NOS)C0018801
- Cardiac failure NOSC0018801
- Cardiac function failedC0018801
- Cardiac function failureC0018801
- Cardiac insufficiencyC0018801
- Failure heartC0018801
- HF - Heart failureC0018801
- Heart FailureC0018801
- Heart failureC0018801
- Heart failure (NOS)C0018801
- Heart failure (disorder)C0018801
- Heart failure, unspecifiedC0018801
- Heart failuresC0018801
- Heart insufficiencyC0018801
- Insufficiency cardiacC0018801
- Weak heartC0018801
- cardiac failureC0018801
- cardiac failuresC0018801
- cardiac insufficiencyC0018801
- failure cardiacC0018801
- failures heartC0018801
- heart failureC0018801
- heart failuresC0018801
- heart insufficiencyC0018801
- heart weaknessC0018801
- heart weaknessesC0018801
- hearts weakC0018801
- insufficiency cardiacC0018801
- insufficiency heartC0018801
- myocardial failureC0018801
- weak heartC0018801
- Cardiac, heart or myocardial failure NOSC2882277
Clinical Terms
- Congestive heart disease
- congestive diseases heart
- Cardiac failures
- Congestive heart failure as post-operative complication of cardiac surgery
- Obstetrical cardiac complication of anaesthesia AND/OR sedation
- Congestive heart failure
- cardiac insufficiency
- Cardiac function failed
- myocardial failure
- Failure heart congestive
- Congestive heart failure due to valvular disease
- insufficiency cardiac
- Cardiac arrest AND/OR failure following anesthesia AND/OR sedation in labor AND/OR delivery
- Cardiac failure NOS
- Cardiac failure, congestive
- Acute on chronic heart failure co-occurrent with normal ejection fraction
- Cardiac oedema
- CHF - Congestive heart failure
- Cardiac arrhythmia in pregnancy
- cardiac failure congestive
- Decompensated cardiac failure
- Heart failure with reduced ejection fraction
- Hypertensive heart failure
- Congestive heart failure stage B due to ischaemic cardiomyopathy
- Low cardiac output syndrome
- Nail changes associated with systemic disease
- Congestive heart failure stage B due to ischemic cardiomyopathy
- failure cardiac
- Acute on chronic heart failure
- Congestive heart failure due to cardiomyopathy
- Congestive heart failure stage C due to ischemic cardiomyopathy
- failures heart
- Heart failure following cardiac surgery
- Heart failure with reduced ejection fraction due to cardiomyopathy
- Obstetrical complication of anesthesia AND/OR sedation
- Cardiac insufficiency following cardiac surgery
- Exacerbation of congestive heart failure
- Cardiac disorder following anaesthesia AND/OR sedation in labour AND/OR delivery
- Compensated cardiac failure
- Heart failure with normal ejection fraction
- Cardiac conduit complication
- disease congestive heart
- Cardiac edema
- Cardiac failure (NOS)
- Normal cardiac ejection fraction
- Decompensated chronic heart failure
- heart congestive failure
- Heart failure due to end stage congenital heart disease
- CCF - Congestive cardiac failure
- Weak heart
- Heart failure with reduced ejection fraction due to coronary artery disease
- Thyrotoxic heart failure
- Normal cardiac function
- Congestive heart failure as early postoperative complication
- Cardiac arrest following obstetric procedure
- Symptomatic congestive heart failure
- Acute exacerbation of chronic heart failure
- Heart failure confirmed
- Acute on chronic congestive heart failure
- Heart failure (NOS)
- Cardiac failure
- Red half-moon nail
- Heart insufficiency
- congestive heart failure (CHF)
- Refractory heart failure
- congestive failure hearts
- Acute congestive heart failure
- Congestive heart failure as post-operative complication of non-cardiac surgery
- Heart failure with reduced ejection fraction due to myocarditis
- Hypertensive heart and renal disease with (congestive) heart failure
- Hypertensive heart and renal disease with both (congestive) heart failure and renal failure
- Congestive heart failure stage C
- Cardiorenal syndrome
- heart weakness
- Malignant hypertensive heart disease with congestive cardiac failure
- Cardiac arrest AND/OR failure following anaesthesia AND/OR sedation in labour AND/OR delivery
- Obstetrical cardiac complication of anesthesia AND/OR sedation
- Cardiac, heart or myocardial failure NOS
- congestive failures heart
- Congestive heart failure NOS
- Secondary pleural effusion
- Failure of Fontan type circulation
- Malignant hypertensive heart disease
- Heart failure (disorder)
- X-linked intellectual disability, cardiomegaly, congestive heart failure syndrome
- congestive cardiac failure
- Pleural effusion due to congestive heart failure
- CHF
- hearts weak
- insufficiency heart
- Cardiac disorder following anesthesia AND/OR sedation in labor AND/OR delivery
- Congestive heart failure following cardiac surgery
- Heart failure during AND/OR resulting from a procedure
- Congestive heart failure stage D
- Congestive rheumatic heart failure
- failure congestive heart
- Heart Failure, Congestive
- congestive failure heart
- Diastolic dysfunction
- Congestive heart failure stage C due to ischaemic cardiomyopathy
- HFrEF - heart failure with reduced ejection fraction
- Congestive heart failure stage B
- Heart failure following obstetric procedure
- Disorder confirmed
- HF - Heart failure
- Heart failure due to thyrotoxicosis
- Low output heart failure due to and following Fontan operation
- Hypertensive heart AND chronic kidney disease with congestive heart failure
- Heart failure following administration of antineoplastic agent
- Acute heart failure co-occurrent with normal ejection fraction
- Low output heart failure
- Acute heart failure
- Chronic congestive heart failure
- Cardiac insufficiency during AND/OR resulting from a procedure
- heart failures
- Heart failure with reduced ejection fraction due to heart valve disease
- Hypertensive renal failure
- Complication due to cardiac conduit operation
- Cardiac arrest during procedure
- Cardiac failure following obstetric procedure
- Obstetrical complication of anaesthesia AND/OR sedation
- Malignant hypertensive heart disease with congestive heart failure
- cardiac congestive failure
- Cardiac function failure
- Hypertensive heart disease with congestive heart failure
- Benign hypertensive heart disease with congestive cardiac failure
- Red half-moon nail in congestive heart failure
- heart weaknesses
- Acute exacerbation of chronic congestive heart failure
- Pleural effusion due to another disorder
- congestive heart failure chf
- Heart failure with preserved ejection fraction
- Benign hypertensive heart disease
- Congestive heart failure after cardiac surgery
- Chronic heart failure co-occurrent with normal ejection fraction
- ccf
- heart failure congestive
- Cardiac arrest due to procedure
- Heart disease due to thyrotoxicosis
- HFpEF - heart failure with preserved ejection fraction
- Congestive heart failure (disorder)
- Cardiac arrhythmia during pregnancy
- Failure heart
- Chronic heart failure
- congestive disease heart
Frequently Asked Questions
What is the ICD-10 code for heart failure, unspecified?
The ICD-10-CM code for heart failure, unspecified is I50.9. The full clinical description is "Heart failure, unspecified". I50.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I50.9 mean?
ICD-10-CM code I50.9 represents “Heart failure, unspecified”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.
Is I50.9 a billable code?
Yes, I50.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I50.9 in?
I50.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I50.9 map to?
I50.9 maps to 74 SNOMED CT concepts: 10633002, 698296002, 1296659009, 56675007, 7421000175106, and 69 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I50.9?
I50.9 is linked to 3 UMLS Concept Unique Identifiers: C0018802, C0018801, C2882277. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I50.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like heart failure, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of I50.9?
I50.9 maps to the ICD-11 code: BD1Z (Heart failure, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.