Melanocytic nevi of unspecified ear and external auricular canal

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 Melanocytic nevi of ear and external auricular canal, unspecified side
FY2011 Draft description revised draft ~~Melanocytic nevi of ear and external auricular canal, unspecified side~~ Melanocytic nevi of unspecified ear and external auricular canal

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 D22 Melanocytic nevi

Includes

atypical nevus
blue hairy pigmented nevus
nevus NOS

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.

Melanosarcoma
Nevocarcinoma
Melanoblastoma
Melanocarcinoma
Mole > cancerous
Melanoepithelioma
Nevus > malignant
Sarcoma > melanotic
Nevus > blue > malignant
Lentigo > maligna > melanoma
Freckle > malignant melanoma in
Melanosarcoma > epithelioid cell
Mole > malignant > meaning > melanoma
Melanosis > precancerous > malignant melanoma in
Nevus > pigmented > giant > malignant melanoma in
Hutchinson's > melanotic freckle > malignant melanoma in
Nevus > skin > ear
Nevus > skin > helix
Nevus > skin > pinna
Nevus > skin > auricle
Nevus > skin > auditory canal
Nevus > skin > auricular canal
Nevus > skin > external meatus

Codes in the same group

Code	Description	Status
D22.21	Melanocytic nevi of right ear and external auricular canal	Valid
D22.22	Melanocytic nevi of left ear and external auricular canal	Valid