429.0 Myocarditis, unspecified
Myocarditis (with mention of arteriosclerosis):
NOS (with mention of arteriosclerosis)
chronic (interstitial) (with mention of arteriosclerosis)
fibroid (with mention of arteriosclerosis)
senile (with mention of arteriosclerosis)
Use additional code to identify presence of arteriosclerosis
Excludes:
acute or subacute (422.0-422.9)
rheumatic (398.0)
acute (391.2)
that due to hypertension (402.0-402.9)