2026 ICD-10-CM Diagnosis Code D00.07Carcinoma in situ of tongue

ICD-10-CM CodesC00–D49D00-D09D00

ICD-10-CM D00.07
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D00.07 is a billable ICD-10-CM diagnosis code for carcinoma in situ of tongue. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 146 through 148. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Head and neck cancers - lip and oral cavity.

Code Identity

ICD-10-CM Code
D00.07
Billable Status
Yes — Valid for Submission
Code Describes
Carcinoma in situ of tongue
Short Description
Carcinoma in situ of tongue
Same as the full description in the CMS dataset.
Parent Code
Carcinoma in situ of lip, oral cavity and pharynx

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD00Carcinoma in situ of oral cavity, esophagus and stomach
This CodeD00.07Carcinoma in situ of tongue

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Carcinoma in situ of anterior two-thirds of tongue - lateral margin
  • Carcinoma in situ of base of tongue
  • Carcinoma in situ of border of tongue
  • Carcinoma in situ of dorsal surface of oral part of tongue
  • Carcinoma in situ of dorsal surface of tongue
  • Carcinoma in situ of floor of mouth
  • Carcinoma in situ of frenum linguae
  • Carcinoma in situ of junctional zone of tongue
  • Carcinoma in situ of oral part of tongue
  • Carcinoma in situ of oropharynx
  • Carcinoma in situ of tip of tongue
  • Carcinoma in situ of tongue
  • Carcinoma in situ of ventral surface of tongue
  • Carcinoma in situ tongue base - dorsal surface
  • Neoplasm of dorsal surface of oral part of tongue
  • Neoplasm of frenulum linguae
  • Neoplasm of junctional zone of tongue
  • Neoplasm of lateral border of tongue
  • Neoplasm of tip of tongue

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO002
Head and neck cancers - lip and oral cavity
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ankyloglossia

    a severe congenital restriction of tongue movement, resulting from fusion or adherence of the tongue to the floor of the mouth. in partial ankyloglossia (tongue-tie) the lingual frenum is abnormally short, or is attached too close to the tip of the tongue. omim: 106280
  • Bluetongue

    a reovirus infection, chiefly of sheep, characterized by a swollen blue tongue, catarrhal inflammation of upper respiratory and gastrointestinal tracts, and often by inflammation of sensitive laminae of the feet and coronet.
  • Body Piercing

    the perforation of an anatomical region for the wearing of jewelry.
  • Electronic Nose

    a device used to detect airborne odors, gases, flavors, volatile substances or vapors.
  • Fasciculation

    involuntary contraction of the muscle fibers innervated by a motor unit. fasciculations may be visualized as a muscle twitch or dimpling under the skin, but usually do not generate sufficient force to move a limb. they may represent a benign condition or occur as a manifestation of motor neuron disease or peripheral nervous system diseases. (adams et al., principles of neurology, 6th ed, p1294)
  • Glossitis, Benign Migratory

    an idiopathic disorder of the tongue characterized by the loss of filiform papillae leaving reddened areas of circinate macules bound by a white band. the lesions heal, then others erupt.
  • Medicine, Chinese Traditional

    a system of traditional medicine which is based on the beliefs and practices of the chinese culture.
  • Oral Frenectomy

    surgical procedures to release or remove abnormally short or tightly attached frenum (e.g., lingual frenum or labial frenum) associated with a pathological condition (e.g., tongue tie and lip tie).
  • Pentastomida

    a subclass of crustacea comprising the tongue worms which are obligatory parasites of reptiles, birds, and mammals including humans.
  • Tongue

    a muscular organ in the mouth that is covered with pink tissue called mucosa, tiny bumps called papillae, and thousands of taste buds. the tongue is anchored to the mouth and is vital for chewing, swallowing, and for speech.
  • Tongue Diseases

    diseases involving the tongue.
  • Tongue Habits

    acquired responses regularly manifested by tongue movement or positioning.
  • Tongue Neoplasms

    tumors or cancer of the tongue.
  • Tongue, Fissured

    the occurrence of of breaks or slits in the tissue of the dorsal surface of the tongue.
  • Tongue, Hairy

    a benign condition of the tongue characterized by hypertrophy of the filiform papillae that give the dorsum of the tongue a furry appearance. the color of the elongated papillae varies from yellowish white to brown or black, depending upon staining by substances such as tobacco, food, or drugs. (dorland, 27th ed)

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary
Malig.
Secondary
Ca
in situ
BenignUncertainUnspec.
frenulumC02.2C79.89D00.07D10.1D37.02D49.0
frenulum linguaeC02.2C79.89D00.07D10.1D37.02D49.0
lingual NEC [See Also: Neoplasm, tongue]C02.9C79.89D00.07D10.1D37.02D49.0
tongueC02.9C79.89D00.07D10.1D37.02D49.0
tongue anterior (two-thirds) NECC02.3C79.89D00.07D10.1D37.02D49.0
tongue anterior (two-thirds) NEC dorsal surfaceC02.0C79.89D00.07D10.1D37.02D49.0
tongue anterior (two-thirds) NEC ventral surfaceC02.2C79.89D00.07D10.1D37.02D49.0
tongue base (dorsal surface)C01C79.89D00.07D10.1D37.02D49.0
tongue border (lateral)C02.1C79.89D00.07D10.1D37.02D49.0
tongue dorsal surface NECC02.0C79.89D00.07D10.1D37.02D49.0
tongue fixed part NECC01C79.89D00.07D10.1D37.02D49.0
tongue foreamen cecumC02.0C79.89D00.07D10.1D37.02D49.0
tongue frenulum linguaeC02.2C79.89D00.07D10.1D37.02D49.0
tongue junctional zoneC02.8C79.89D00.07D10.1D37.02D49.0
tongue margin (lateral)C02.1C79.89D00.07D10.1D37.02D49.0
tongue midline NECC02.0C79.89D00.07D10.1D37.02D49.0
tongue mobile part NECC02.3C79.89D00.07D10.1D37.02D49.0
tongue posterior (third)C01C79.89D00.07D10.1D37.02D49.0
tongue rootC01C79.89D00.07D10.1D37.02D49.0
tongue surface (dorsal)C02.0C79.89D00.07D10.1D37.02D49.0
tongue surface (dorsal) baseC01C79.89D00.07D10.1D37.02D49.0
tongue surface (dorsal) ventralC02.2C79.89D00.07D10.1D37.02D49.0
tongue tipC02.1C79.89D00.07D10.1D37.02D49.0
tongue tonsilC02.4C79.89D00.07D10.1D37.02D49.0
tonsil lingualC02.4C79.89D00.07D10.1D37.02D49.0

Patient EducationClinical

Oral Cancer

Oral cancer is cancer of the mouth. It is a type of head and neck cancer. Most oral cancers are squamous cell cancers. They begin in the flat cells that cover the surfaces of your mouth, tongue, and lips. The cancer cells may spread into deeper tissue as the cancer grows.

The full article covers:

  • What is oral cancer?
  • Who is more likely to develop oral cancer?
  • What are the symptoms of oral cancer?
  • How is oral cancer diagnosed?
  • What are the treatments for oral cancer?
  • Can oral cancer be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D00.07 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
230.0 Ca in situ oral cav/phar
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D00.07Overview

Is D00.07 (Carcinoma in situ of lip, oral cavity and pharynx) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report carcinoma in situ of tongue on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D00.07 group to?

When carcinoma in situ of tongue is the principal diagnosis on an inpatient stay, it groups to MS-DRG 146, 147, 148, with relative weights from 0.7971 to 2.1174 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D00.07?

Under the General Equivalence Mappings, carcinoma in situ of tongue converts to ICD-9-CM 230.0 (ca in situ oral cav/phar). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.