G443-char group
Other headache syndromes
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: atypical facial pain (G50.1) headache NOS (R51) trigeminal neuralgia (G50.0)