Type 1 Excludes:

Myocarditis (in):
Chagas' Disease (chronic) (B57.2)
Acute (B57.0)
Coxsackie (virus) Infection (B33.22)
Diphtheritic (A36.81)
Gonococcal (A54.83)
Influenzal (J09.X9, J10.82, J11.82)
Meningococcal (A39.52)
Mumps (B26.82)
Rheumatoid Arthritis (M05.31)
Sarcoid (D86.85)
Syphilis (A52.06)
Toxoplasmosis (B58.81)
Tuberculous (A18.84)

The following code(s) above I41 may contain annotation back-references that may be applicable to I41: