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ICD-10-CM 2027 diagnosis code

D10.3Benign neoplasm of other and unspecified parts of mouth

Not billable — use a more specific code

D10.3 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D10.3

D10.3 is the ICD-10-CM diagnosis code for benign neoplasm of other and unspecified parts of mouth. It belongs to category D10 (benign neoplasm of mouth and pharynx), block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within D10, choose D10.3 (other and unspecified parts of mouth) only when documentation doesn't support a more specific option: lip (D10.0), tongue (D10.1), floor of mouth (D10.2), tonsil (D10.4), other parts of oropharynx (D10.5), nasopharynx (D10.6), hypopharynx (D10.7) and pharynx, unspecified (D10.9).

To report this condition, pick the subcode that matches the documentation: D10.30 (mouth) and D10.39 (mouth).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).

Specific codes under D10.3

Notes that apply from higher levels

Instructions written at a parent level also apply to D10.3.

Broader instructions also apply from Chapter 2: Neoplasms.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Title revised — was “Other and unspecified parts of mouth”

Common questions about D10.3

Is D10.3 billable?

No. D10.3 is a header code. Report one of its more specific subcodes instead.