D00.01 – Carcinoma in situ of labial mucosa and vermilion border

ICD-10-CM 2027 diagnosis code · In situ neoplasms

Billable code

ICD-10-CM code D00.01

Code: D00.01 (claims format: D0001)
Description: Carcinoma in situ of labial mucosa and vermilion border
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 2. Neoplasms (C00-D49)
Block: D00-D09 In situ neoplasms
Parent codes: D00 › D00.0

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

D00 – Carcinoma in situ of oral cavity, esophagus and stomach

Excludes1 (not coded here):

melanoma in situ (D03.-)

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

Excludes1 (not coded here):

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)

Block D00-D09

Includes:

Bowen's disease
erythroplasia
grade III intraepithelial neoplasia
Queyrat's erythroplasia

Related codes in D00.0

D00.00 – Carcinoma in situ of oral cavity, unspecified siteBillable
D00.02 – Carcinoma in situ of buccal mucosaBillable
D00.03 – Carcinoma in situ of gingiva and edentulous alveolar ridgeBillable
D00.04 – Carcinoma in situ of soft palateBillable
D00.05 – Carcinoma in situ of hard palateBillable
D00.06 – Carcinoma in situ of floor of mouthBillable
D00.07 – Carcinoma in situ of tongueBillable
D00.08 – Carcinoma in situ of pharynxBillable

Frequently asked questions

What is ICD-10 code D00.01?

D00.01 is the ICD-10-CM code for carcinoma in situ of labial mucosa and vermilion border, in the block D00-D09 (In situ neoplasms).

Is D00.01 a billable code?

Yes. D00.01 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does D00.01 belong to?

It belongs to category D00 – Carcinoma in situ of oral cavity, esophagus and stomach.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.