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

BillableUnspecified

Is D00.00 billable?

Yes, but D00.00 is an unspecified code. D00.00 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D00.00 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting D00.00 — the more specific alternatives are listed below.

More specific alternatives

D00.00 at a glance

Code	D00.00
Description	Carcinoma in situ of oral cavity, unspecified site
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does D00.00 group to?

D00.00 sits in MDC Pre and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCsurgical
012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCsurgical
013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCsurgical

Excludes1 — never code together — inherited from D00

The conditions below can never be reported together with D00.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

melanoma in situ (D03.-)

Excludes1 — never code together — inherited from D00.0

The conditions below can never be reported together with D00.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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 — inherited from D00.0

Report an additional code alongside D00.00 to fully describe the condition. D00.00 is sequenced first.

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)

How long has D00.00 existed?

D00.00 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.