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D10.2 ICD-10-CM Code: Benign neoplasm of floor of mouth

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Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Billable · FY2027A valid, specific ICD-10-CM code, reportable for dates of service in FY2027.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too; the Instructions section marks which is which.

The tabular list publishes no instructional note for this code itself.

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Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 011 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH MCC (MDC PRE)
  • MS-DRG 012 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH CC (MDC PRE)
  • MS-DRG 013 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITHOUT CC/MCC (MDC PRE)
  • MS-DRG 157 — DENTAL AND ORAL DISEASES WITH MCC (MDC 03)
  • MS-DRG 158 — DENTAL AND ORAL DISEASES WITH CC (MDC 03)
  • MS-DRG 159 — DENTAL AND ORAL DISEASES WITHOUT CC/MCC (MDC 03)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coder workflow for D10.2

MedCoder structured workflow — derived from this code’s own official record

Before you code D10.2

  1. Confirm the documented site and behavior (this code’s block classifies benign neoplasms), whether the site is primary or secondary, and whether the malignancy is current or a personal history: a previously excised malignancy with no further treatment and no evidence of disease is history, not current disease. Verify the site against the Table of Neoplasms. Neoplasm chapter guidelines (Guidelines I.C.2.a, I.C.2.d, I.C.2.m).

    See the Table of Neoplasms entries · Guide: Active cancer vs history of cancer →

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Anatomical site
At the most specific level the record states; a site the classification separates cannot be assumed from a procedure or a measurement.
Behavior and current-versus-history status
Malignant, in situ, benign or uncertain; primary or secondary; current disease or personal history (Guidelines I.C.2.m).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse D10.2 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of D10.2 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • D10.3— Specificity relationship (Review)

    Overlapping diagnoses in the same category.

    Overlapping codes in the same category — the documentation decides which is the more specific fit.

    What moves you there: A record that documents no more than “Benign neoplasm of other and unspecified parts of mouth” takes D10.3; specificity in the record moves it back here.

    Full comparison: D10.2 vs D10.3 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Benign neoplasm of floor of mouth is a billable ICD-10-CM diagnosis code (D10.2).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name D10.2 or its code family, from the CMS Table of Neoplasms.

Referenced by 7 Same-site neoplasm codes: C04.0 — Malignant neoplasm of anterior floor of mouthCompare D10.2 vs C04.0 →, C04.1 — Malignant neoplasm of lateral floor of mouthCompare D10.2 vs C04.1 →, C04.9 — Malignant neoplasm of floor of mouth, unspecifiedCompare D10.2 vs C04.9 →, C79.89 — Secondary malignant neoplasm of other specified sitesCompare D10.2 vs C79.89 →, D00.06 — Carcinoma in situ of floor of mouthCompare D10.2 vs D00.06 →, D37.09 — Neoplasm of uncertain behavior of other specified sites of the oral cavityCompare D10.2 vs D37.09 →, D49.0 — Neoplasm of unspecified behavior of digestive systemCompare D10.2 vs D49.0 →.

These codes represent related neoplasm behaviors affecting the same anatomic site.

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 6 MS-DRGs: DRG 011 (MDC PRE), DRG 012 (MDC PRE), DRG 013 (MDC PRE), DRG 157 (MDC 03), DRG 158 (MDC 03), DRG 159 (MDC 03).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):NEO073 — Benign neoplasms (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Benign neoplasms).

D10.0 — Benign neoplasm of lip, D10.1 — Benign neoplasm of tongue, D10.30 — Benign neoplasm of unspecified part of mouth, D10.39 — Benign neoplasm of other parts of mouth, D10.4 — Benign neoplasm of tonsil, D10.5 — Benign neoplasm of other parts of oropharynx, D10.6 — Benign neoplasm of nasopharynx, D10.7 — Benign neoplasm of hypopharynx, D10.9 — Benign neoplasm of pharynx, unspecified, D11.0 — Benign neoplasm of parotid gland, D11.7 — Benign neoplasm of other major salivary glands, D11.9 — Benign neoplasm of major salivary gland, unspecified, D12.0 — Benign neoplasm of cecum, D12.1 — Benign neoplasm of appendix, D12.2 — Benign neoplasm of ascending colon, D12.3 — Benign neoplasm of transverse colon, D12.4 — Benign neoplasm of descending colon, D12.5 — Benign neoplasm of sigmoid colon, D12.6 — Benign neoplasm of colon, unspecified, D12.7 — Benign neoplasm of rectosigmoid junction, +252 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Iron Panel

Contextual Map

Every relationship of D10.2 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

Same site

Referenced by Same-site neoplasm codes

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • Pre-MDC[MDC crossing]: “Pre-MDC — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 175 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027
  • MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat[MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 5,151 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027

Neoplasm sites

  • Neoplasm, neoplastic, mouth, floor — Neoplasm, neoplastic, mouth, floor — Benign [Neoplasm table]: “Neoplasm, neoplastic, mouth, floor (Benign)”— CMS Table of Neoplasms · icd10cm-fy2027
  • Neoplasm, neoplastic, mouth, floor, anterior portion — Neoplasm, neoplastic, mouth, floor, anterior portion — Benign [Neoplasm table]: “Neoplasm, neoplastic, mouth, floor, anterior portion (Benign)”— CMS Table of Neoplasms · icd10cm-fy2027
  • Neoplasm, neoplastic, mouth, floor, lateral portion — Neoplasm, neoplastic, mouth, floor, lateral portion — Benign [Neoplasm table]: “Neoplasm, neoplastic, mouth, floor, lateral portion (Benign)”— CMS Table of Neoplasms · icd10cm-fy2027
  • Neoplasm, neoplastic, sublingual — Neoplasm, neoplastic, sublingual — Benign [Neoplasm table]: “Neoplasm, neoplastic, sublingual (Benign)”— CMS Table of Neoplasms · icd10cm-fy2027

Nearest codes (11)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Neoplasm Table Sites (4)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.

  • Neoplasm, neoplastic, mouth, floor — Benign
  • Neoplasm, neoplastic, mouth, floor, anterior portion — Benign
  • Neoplasm, neoplastic, mouth, floor, lateral portion — Benign
  • Neoplasm, neoplastic, sublingual — Benign

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "D10.2 — Benign neoplasm of floor of mouth." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/d10.2-benign-neoplasm-of-floor-of-mouth

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Benign neoplasm of floor of mouth

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to D10.2 in its code family, with their registry titles.

View all codes in the D10 family