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I43 — Cardiomyopathy in diseases classified elsewhere

Part of Chapter 9: Diseases of the circulatory system , block Other forms of heart disease (I30-I5A) .

Official Notes

Code First

underlying disease, such as:

Code First

amyloidosis ( E85 .-)

Code First

glycogen storage disease ( E74.0- )

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gout ( M10.0- )

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thyrotoxicosis (E05.0-E05.9-)

Excludes1

cardiomyopathy (in):

Excludes1

coxsackie (virus) ( B33.24 )

Excludes1

diphtheria ( A36.81 )

Excludes1

sarcoidosis ( D86.85 )

Excludes1

tuberculosis ( A18.84 )

Child Codes

I43 has no child codes in the FY 2027 release -- it is used on its own.

Referenced By

Official notes on these codes cite I43.

FY 2027 effective October 1, 2026 · CDC NCHS and CMS