H48.1** Asterisk (manifestation)
Retrobulbar neuritis in diseases classified elsewhere
Coding rules (TT06)
- ●Cannot be used as primary diagnosis
Dual coding (†/*)
This is an asterisk (*) manifestation code — usually paired with a dagger (†) etiology code.
→ Full dagger (†) ↔ asterisk (*) mapping tableCoding guidance (WHO 2019)
Retrobulbar neuritis in: late syphilis (A52.1†) meningococcal infection (A39.8†) multiple sclerosis (G35†)