Unspecified malignant neoplasm of skin of scalp and neck

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 2012 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.

FY2012 Added to the draft code set draft Unspecified malignant neoplasm of skin of scalp and neck

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 C44 Other and unspecified malignant neoplasm of skin

Excludes1 - never coded here

Kaposi's sarcoma of skin (C46.0)
malignant melanoma of skin (C43.-)
malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
Merkel cell carcinoma (C4A.-)

Includes

malignant neoplasm of sebaceous glands
malignant neoplasm of sweat glands

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 > scalp
Neoplasm, neoplastic > neck NEC > skin
Neoplasm, neoplastic > skin NOS > neck
Neoplasm, neoplastic > skin NOS > scalp
Neoplasm, neoplastic > skin NOS > head NEC
Neoplasm, neoplastic > skin NOS > cervical region
Neoplasm, neoplastic > skin NOS > supraclavicular region

Codes in the same group

Code	Description	Status
C44.41	Basal cell carcinoma of skin of scalp and neck	Valid
C44.42	Squamous cell carcinoma of skin of scalp and neck	Valid
C44.49	Other specified malignant neoplasm of skin of scalp and neck	Valid