K13
Header — not billableOther diseases of lip and oral mucosa
The ICD-10 code for other diseases of lip and oral mucosa is K13.
K13 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 8 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Includes
Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.
- epithelial disturbances of tongue
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
- 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)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under K13
- K13.0Diseases of lips
- K13.1Cheek and lip biting
- K13.2Leukoplakia and other disturbances of oral epithelium, including tonguenon-billable header
- K13.3Hairy leukoplakia
- K13.4Granuloma and granuloma-like lesions of oral mucosa
- K13.5Oral submucous fibrosis
- K13.6Irritative hyperplasia of oral mucosa
- K13.7Other and unspecified lesions of oral mucosanon-billable header
Related codes in this category
- K00Disorders of tooth development and eruptionnon-billable header
- K01Embedded and impacted teethnon-billable header
- K02Dental cariesnon-billable header
- K03Other diseases of hard tissues of teethnon-billable header
- K04Diseases of pulp and periapical tissuesnon-billable header
- K05Gingivitis and periodontal diseasesnon-billable header
- K06Other disorders of gingiva and edentulous alveolar ridgenon-billable header
- K08Other disorders of teeth and supporting structuresnon-billable header
- K09Cysts of oral region, not elsewhere classifiednon-billable header
- K11Diseases of salivary glandsnon-billable header
- K12Stomatitis and related lesionsnon-billable header
- K14Diseases of tonguenon-billable header
- K13Other diseases of lip and oral mucosanon-billable header