C243-char group
Malignant neoplasm of other and unspecified parts of biliary tract
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: intrahepatic bile duct (C22.1)