ICD-10-CM 2027
ICD-10 code for bathing trunk nevus
From the official ICD-10-CM alphabetic index entry “Nevus › bathing trunk”. Page updated September 29, 2026.
About coding bathing trunk nevus
The ICD-10-CM code for bathing trunk nevus is D48.5 (Neoplasm of uncertain behavior of skin).
Within D48 (neoplasm of uncertain behavior of other and unspecified sites), D48.5 is specifically for neoplasm of uncertain behavior of skin. Related codes cover behavior of bone and articular cartilage (D48.0), behavior of connective and other soft tissue (D48.1), behavior of peripheral nerves and autonomic nervous system (D48.2), behavior of retroperitoneum (D48.3), behavior of peritoneum (D48.4), behavior of breast (D48.6), behavior of other specified sites (D48.7) and behavior, unspecified (D48.9).
Don't report D48.5 together with the conditions in its Excludes1 note: neoplasm of uncertain behavior of anus NOS (D37.8), neoplasm of uncertain behavior of skin of genital organs (D39.8, D40.8) and neoplasm of uncertain behavior of vermilion border of lip (D37.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for D48.5)
Common questions about bathing trunk nevus ICD-10 codes
What is the ICD-10 code for bathing trunk nevus?
- D48.5 — Neoplasm of uncertain behavior of skin.
Is D48.5 billable?
- Yes. D48.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D48.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D48.5 as a principal diagnosis.
Is D48.5 a CC or MCC?
- No. D48.5 is neither a CC nor an MCC under MS-DRG v44.0.