I223-char group
Subsequent myocardial infarction
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Note: For morbidity coding, this category should be assigned for infarction of any myocardial site, occurring within 4 weeks (28 days) from onset of a previous infarction Incl.: myocardial infarction: extension recurrent reinfarction Excl.: specified as chronic or with a stated duration of more than 4 weeks (more than 28 days) from onset (I25.8)