D00.00 Carcinoma in situ of oral cavity, unspecified site

Billable ICD-10-CM code, FY2026.

Applies from D00 Carcinoma in situ of oral cavity, esophagus and stomach

Excludes1 (never code together)

• melanoma in situ (D03.-)

Applies from D00.0 Carcinoma in situ of lip, oral cavity and pharynx

Excludes1 (never code together)

• carcinoma in situ of aryepiglottic fold or interarytenoid fold, laryngeal aspect (D02.0)
• carcinoma in situ of epiglottis NOS (D02.0)
• carcinoma in situ of epiglottis suprahyoid portion (D02.0)
• carcinoma in situ of skin of lip (D03.0, D04.0)

Use additional code

• code to identify:
• exposure to environmental tobacco smoke (Z77.22)
• exposure to tobacco smoke in the perinatal period (P96.81)
• history of tobacco dependence (Z87.891)
• occupational exposure to environmental tobacco smoke (Z57.31)
• tobacco dependence (F17.-)
• tobacco use (Z72.0)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 230.0 Carcinoma in situ of lip, oral cavity, and pharynx (approximate)

Code annotations containing back-references to D00.00

Back-references to D00.0

• Type 1 Excludes: K13.2 Leukoplakia and other disturbances of oral epithelium, including tongue ("carcinoma in situ of oral epithelium (D00.0-)")

Nearby codes

• D00 Carcinoma in situ of oral cavity, esophagus and stomach
• D00.0 Carcinoma in situ of lip, oral cavity and pharynx
• D00.00 Carcinoma in situ of oral cavity, unspecified site (this code)
• D00.01 Carcinoma in situ of labial mucosa and vermilion border
• D00.02 Carcinoma in situ of buccal mucosa
• D00.03 Carcinoma in situ of gingiva and edentulous alveolar ridge
• D00.04 Carcinoma in situ of soft palate
• D00.05 Carcinoma in situ of hard palate