W773-char group
Threat to breathing due to cave-in, falling earth and other substances
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Cannot be used as primary diagnosis
Coding guidance (WHO 2019)
Incl.: cave-in NOS Excl.: cave-in caused by cataclysm (X34-X39) cave-in without asphyxiation or suffocation (W20)