A17†3-char group† Dagger (etiology)
Tuberculosis of nervous system
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Dual coding (†/*)
This is a dagger (†) etiology code — pair it with the corresponding asterisk (*) manifestation code.
→ Full dagger (†) ↔ asterisk (*) mapping table