I42
Non-billableCardiomyopathy
Cardiomyopathy
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
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
Child Codes (10)
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
I42.9Cardiomyopathy, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(26)
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
Frequently Asked Questions
What is the ICD-10 code for cardiomyopathy?
The ICD-10-CM code for cardiomyopathy is I42. The full clinical description is "Cardiomyopathy". I42 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code I42 mean?
ICD-10-CM code I42 represents “Cardiomyopathy”. It is classified under Chapter 9: Diseases of the Circulatory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is I42 a billable code?
No, I42 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under I42.
What chapter is I42 in?
I42 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What are the subcategories under I42?
I42 has 10 child codes, including: I42.0 (Dilated cardiomyopathy), I42.1 (Obstructive hypertrophic cardiomyopathy), I42.2 (Other hypertrophic cardiomyopathy), I42.3 (Endomyocardial (eosinophilic) disease), and 6 more.
What are the UMLS CUIs for I42?
I42 is linked to 1 UMLS Concept Unique Identifier: C0878544. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I42 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like cardiomyopathy 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?
I42 maps to the ICD-11 code: BC43.Z (Cardiomyopathy, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.