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).

S04.811Injury of olfactory [1st ] nerve, right side⚠ 7th charS04.812Injury of olfactory [1st ] nerve, left side⚠ 7th charS04.819Injury of olfactory [1st ] nerve, unspecified side⚠ 7th char

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

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