D48.5 Neoplasm of uncertain behavior of skin

Billable ICD-10-CM code, FY2026.

Applicable to

• Neoplasm of uncertain behavior of anal margin
• Neoplasm of uncertain behavior of anal skin
• Neoplasm of uncertain behavior of perianal skin
• Neoplasm of uncertain behavior of skin of breast

Excludes1 (never code together)

• neoplasm of uncertain behavior of anus NOS (D37.8)
• neoplasm of uncertain behavior of skin of genital organs (D39.8, D40.8)
• neoplasm of uncertain behavior of vermilion border of lip (D37.0)

Applies from D48 Neoplasm of uncertain behavior of other and unspecified sites

Excludes1 (never code together)

• neurofibromatosis (nonmalignant) (Q85.0-)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 238.2 Neoplasm of uncertain behavior of skin

Code annotations containing back-references to D48.5

Back-references to D48.5

• Type 1 Excludes: D37.0 Neoplasm of uncertain behavior of lip, oral cavity and pharynx ("neoplasm of uncertain behavior of skin of lip (D48.5)")
• Type 1 Excludes: D37.8 Neoplasm of uncertain behavior of other specified digestive organs ("neoplasm of uncertain behavior of anal margin (D48.5)")
• Type 1 Excludes: D37.8 Neoplasm of uncertain behavior of other specified digestive organs ("neoplasm of uncertain behavior of anal skin (D48.5)")
• Type 1 Excludes: D37.8 Neoplasm of uncertain behavior of other specified digestive organs ("neoplasm of uncertain behavior of perianal skin (D48.5)")
• Type 1 Excludes: D38.5 Neoplasm of uncertain behavior of other respiratory organs ("neoplasm of uncertain behavior of ear (external) (skin) (D48.5)")
• Type 1 Excludes: D38.5 Neoplasm of uncertain behavior of other respiratory organs ("neoplasm of uncertain behavior of skin of nose (D48.5)")
• Type 1 Excludes: D48.6 Neoplasm of uncertain behavior of breast ("neoplasm of uncertain behavior of skin of breast (D48.5)")
• Type 1 Excludes: D48.7 Neoplasm of uncertain behavior of other specified sites ("neoplasm of uncertain behavior of skin of eyelid (D48.5)")

Back-references to D48

• Type 1 Excludes: D49 Neoplasms of unspecified behavior ("neoplasms of uncertain behavior (D37-D44, D48)")

Diagnosis Index entries for D48.5

• Nevus › bathing trunk
• Nevus › pigmented › giant
• Tumor › basal cell

Nearby codes

• D48.119 Desmoid tumor of unspecified site
• D48.19 Other specified neoplasm of uncertain behavior of connective and other soft tissue
• D48.2 Neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system
• D48.3 Neoplasm of uncertain behavior of retroperitoneum
• D48.4 Neoplasm of uncertain behavior of peritoneum
• D48.5 Neoplasm of uncertain behavior of skin (this code)
• D48.6 Neoplasm of uncertain behavior of breast
• D48.60 Neoplasm of uncertain behavior of unspecified breast
• D48.61 Neoplasm of uncertain behavior of right breast
• D48.62 Neoplasm of uncertain behavior of left breast
• D48.7 Neoplasm of uncertain behavior of other specified sites