2025
ICD-10-CM
Diagnosis
Code

K13 Other diseases of lip and oral mucosa

  • Non-billable
  • 2016–2025

K13 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Other diseases of lip and oral mucosa.

Includes

  • Epithelial disturbances of tongue

Use additional code

  • Code to identify:

    • Alcohol abuse and dependence (F10.-)

    • 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)

Type 2 excludes

  • Certain disorders of gingiva and edentulous alveolar ridge (K05-K06)

  • Cysts of oral region (K09.-)

  • Diseases of tongue (K14.-)

  • Stomatitis and related lesions (K12.-)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    Code changed

    • Use additional code

        • code to identify:
        • alcohol abuse and dependence (F10.-)
        • exposure to environmental tobacco smoke (Z77.22)
        • exposure to tobacco smoke in the perinatal period (P96.81)
        • history of tobacco use (Z87.891)
        • occupational exposure to environmental tobacco smoke (Z57.31)
        • tobacco dependence (F17.-)
        • tobacco use (Z72.0)
        • code to identify:
        • alcohol abuse and dependence (F10.-)
        • 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)

  10. 2016

    New code