I42.9
BillableCardiomyopathy, unspecified
Cardiomyopathy, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Cardiomyopathy (primary) (secondary) NOS
Includes
Conditions included under this code
- myocardiopathy
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
- •ischemic cardiomyopathyI25.5
- •peripartum cardiomyopathyO90.3
- •ventricular hypertrophyI51.7
Code First
The underlying condition must be sequenced before this code
Related Codes(9)
I42.0Dilated cardiomyopathy
I42.1Obstructive hypertrophic cardiomyopathy
I42.2Other hypertrophic cardiomyopathy
I42.3Endomyocardial (eosinophilic) disease
I42.4Endocardial fibroelastosis
I42.5Other restrictive cardiomyopathy
I42.6Alcoholic cardiomyopathy
I42.7Cardiomyopathy due to drug and external agent
I42.8Other cardiomyopathies
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(96)
SNOMED CT
- Familial cardiomyopathy35728003
- Primary familial cardiomyopathy35728003
- Cardiomyopathy85898001
- Myocardiopathy85898001
- Primary cardiomyopathy89461002
- Scapuloperoneal muscular dystrophy129620000
- Severe scapuloperoneal muscular dystrophy with cardiomyopathy240077004
- Tachycardia-induced cardiomyopathy426300009
- HFpEF - heart failure with preserved ejection fraction446221000
- Heart failure with normal ejection fraction446221000
- Heart failure with preserved ejection fraction446221000
- Cardiomyopathy due to neuromuscular disorder471846004
- Pacing-induced cardiomyopathy471870000
- Mitral valve regurgitation due to cardiomyopathy703259006
- HFrEF - heart failure with reduced ejection fraction703272007
- Heart failure with reduced ejection fraction703272007
- Heart failure with reduced ejection fraction due to cardiomyopathy703275009
- Heart disease co-occurrent with human immunodeficiency virus infection713298006
- Cardiomyopathy co-occurrent with human immunodeficiency virus infection713523008
- Tubular renal disease with cardiomyopathy syndrome719839000
- Maternally inherited cardiomyopathy and deafness724173009
- Maternally inherited cardiomyopathy and hearing loss syndrome724173009
- Cardiomyopathy due to cirrhosis of liver725416005
- Cirrhotic cardiomyopathy725416005
- Left ventricular failure with normal ejection fraction due to cardiomyopathy1204206001
- Congestive heart failure due to cardiomyopathy101281000119107
UMLS
- CardiomyopathiesC0878544
- CardiomyopathyC0878544
- Cardiomyopathy (disorder)C0878544
- Cardiomyopathy NOSC0878544
- Cardiomyopathy,C0878544
- Cardiomyopathy, unspecifiedC0878544
- Disease of the heart muscleC0878544
- Disease, MyocardialC0878544
- Diseases, MyocardialC0878544
- Disorder of heart muscleC0878544
- Disorder of myocardiumC0878544
- MYOCARDIAL DISC0878544
- Myocardial DiseaseC0878544
- Myocardial DiseasesC0878544
- Myocardial diseaseC0878544
- Myocardial disease (disorder)C0878544
- MyocardiodystrophyC0878544
- MyocardiopathiesC0878544
- MyocardiopathyC0878544
- cardiomyopathiesC0878544
- cardiomyopathyC0878544
- heart muscle diseaseC0878544
- myocardial diseaseC0878544
- myocardial diseasesC0878544
- myocardiopathyC0878544
- myocardium disorderC0878544
- Cardiomyopathy (primary) (secondary) NOSC2882254
Clinical Terms
- myocardium disorder
- heart muscle disease
- Left ventricular failure with normal ejection fraction due to cardiomyopathy
- Myocardiopathy
- Primary cardiomyopathy
- Myocardiopathies
- Cardiomyopathy,
- Disease, Myocardial
- Maternally inherited cardiomyopathy and hearing loss syndrome
- Severe scapuloperoneal muscular dystrophy with cardiomyopathy
- Cardiomyopathy (primary) (secondary) NOS
- myocardial disease
- myocardial diseases
- Cardiomyopathy due to neuromuscular disorder
- Primary familial cardiomyopathy
- Cirrhotic cardiomyopathy
- Disease of the heart muscle
- Familial cardiomyopathy
- Disorder of myocardium
- Cardiomyopathy due to cirrhosis of liver
- Mitral valve regurgitation due to cardiomyopathy
- Heart disease co-occurrent with human immunodeficiency virus infection
- Heart failure with reduced ejection fraction
- Tachycardia-induced cardiomyopathy
- Cardiomyopathy NOS
- Maternally inherited cardiomyopathy and deafness
- Scapuloperoneal muscular dystrophy
- Myocardial disease (disorder)
- HFrEF - heart failure with reduced ejection fraction
- Myocardiodystrophy
- Heart failure with preserved ejection fraction
- Congestive heart failure due to cardiomyopathy
- Heart failure with reduced ejection fraction due to cardiomyopathy
- MYOCARDIAL DIS
- Diseases, Myocardial
- Disorder of heart muscle
- Pacing-induced cardiomyopathy
- HFpEF - heart failure with preserved ejection fraction
- cardiomyopathies
- Tubular renal disease with cardiomyopathy syndrome
- Cardiomyopathy co-occurrent with human immunodeficiency virus infection
- Cardiomyopathy (disorder)
- Heart failure with normal ejection fraction
Frequently Asked Questions
What is the ICD-10 code for cardiomyopathy, unspecified?
The ICD-10-CM code for cardiomyopathy, unspecified is I42.9. The full clinical description is "Cardiomyopathy, unspecified". I42.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I42.9 mean?
ICD-10-CM code I42.9 represents “Cardiomyopathy, 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 I42.9 a billable code?
Yes, I42.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I42.9 in?
I42.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I42.9 map to?
I42.9 maps to 19 SNOMED CT concepts: 85898001, 713523008, 725416005, 471846004, 101281000119107, and 14 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I42.9?
I42.9 is linked to 2 UMLS Concept Unique Identifiers: C0878544, C2882254. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I42.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like cardiomyopathy, 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 I42.9?
I42.9 maps to the ICD-11 code: BC43.Z (Cardiomyopathy, 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.