D49.8Neoplasm of unspecified behavior of other specified sites

D49.8 is the ICD-10-CM diagnosis code for neoplasm of unspecified behavior of other specified sites. It belongs to category D49 (neoplasms of unspecified behavior), block D49 (neoplasms of unspecified behavior) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within D49, choose D49.8 (other specified sites) only when documentation doesn't support a more specific option: digestive system (D49.0), respiratory system (D49.1), bone, soft tissue, and skin (D49.2), breast (D49.3), bladder (D49.4), other genitourinary organs (D49.5), brain (D49.6), endocrine glands and other parts of nervous system (D49.7) and 1 more.

To report this condition, pick the subcode that matches the documentation: D49.81 (choroid) and D49.89 (sites).

Don't report D49.8 together with the conditions in its Excludes1 note: neoplasm of unspecified behavior of eyelid (skin) (D49.2), neoplasm of unspecified behavior of eyelid cartilage (D49.2), neoplasm of unspecified behavior of great vessels (D49.2) and neoplasm of unspecified behavior of optic nerve (D49.7).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.