Malignant neoplasm of unspecified olfactory nerve

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Malignant neoplasm of olfactory nerve, unspecified side
FY2011 Draft description revised draft ~~Malignant neoplasm of olfactory nerve, unspecified side~~ Malignant neoplasm of unspecified olfactory nerve

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from C72 Malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system

Excludes1 - never coded here

malignant neoplasm of meninges (C70.-)
malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Neoplasm, neoplastic > olfactory nerve or bulb

Codes in the same group

Code	Description	Status
C72.21	Malignant neoplasm of right olfactory nerve	Valid
C72.22	Malignant neoplasm of left olfactory nerve	Valid