T20.40
Corrosion of unspecified degree of head, face, and neck, unspecified site
The following code(s) above T20.40 may contain annotation back-references that may be applicable to T20.40:
- Injury, poisoning and certain other consequences of external causes (S00-T88)
- Corrosion of unspecified degree of head, face, and neck (T20.4)
Diagnosis Index