I343-char group
Nonrheumatic mitral valve disorders
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: mitral (valve): disease (I05.9) failure (I05.8) stenosis (I05.0) when of unspecified cause but with mention of: diseases of aortic valve (I08.0) mitral stenosis or obstruction (I05.0) when specified as congenital (Q23.2-Q23.9) when specified as rheumatic (I05.-)