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Diagnosis Code

I42.1 OBSTRUCTIVE HYPERTROPHIC CARDIOMYOPATHY


Code Information

Diagnosis Code: I42.1

Short Description: Obstructive hypertrophic cardiomyopathy

Long Description: Obstructive hypertrophic cardiomyopathy

The code I42.1 is VALID for claim submission

Code Classification:

  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I5A)
      • Cardiomyopathy (I42)
        • I42.1 Obstructive hypertrophic cardiomyopathy

Code Version: 2022 ICD-10-CM


Synonyms

  • Hypertrophic obstructive cardiomyopathy

Diagnostic Related Group(s)

The code I42.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Circulatory System Diagnoses With Mcc (314)
  • Other Circulatory System Diagnoses With Cc (315)
  • Other Circulatory System Diagnoses Without Cc/mcc (316)

References to Index of Diseases and Injuries

The code I42.1 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Hypertrophic subaortic stenosis (idiopathic)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
I42.1 Right Arrow 425.11 Hyprtrophc obst cardiomy

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
I42 Cardiomyopathy
I42.0 Dilated cardiomyopathy
I42.2 Other hypertrophic cardiomyopathy
I42.3 Endomyocardial (eosinophilic) disease
I42.4 Endocardial fibroelastosis
I42.5 Other restrictive cardiomyopathy
I42.6 Alcoholic cardiomyopathy
I42.7 Cardiomyopathy due to drug and external agent
I42.8 Other cardiomyopathies
I42.9 Cardiomyopathy, unspecified

This page was last updated on: 10/1/2023

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