S04.81 - Injury of olfactory [1st ] nerve S04.8 - Injury of other cranial nerves S04.81 - Injury of olfactory [1st ] nerve S04.811 - Injury of olfactory [1st ] nerve, right side S04.812 - Injury of olfactory [1st ] nerve, left side S04.819 - Injury of olfactory [1st ] nerve, unspecified side