S04.81Non-billable (header)
Injury of olfactory [1st ] nerve
Sub-codes of S04.81(3)
S04.81 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).
Code Hierarchy
┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├S00-S09Injuries to the head (S00-S09)├S04Injury of cranial nerve
└S04.81Injury of olfactory [1st ] nerve
Not sure between two codes?
⇄ Compare S04.81 with another code →