K13.0 — Diseases of lips
K13.0 is a billable, specific ICD-10-CM code for diseases of lips. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Abscess of lips
- Angular cheilitis
- Cellulitis of lips
- Cheilitis NOS
- Cheilodynia
- Cheilosis
- Exfoliative cheilitis
- Fistula of lips
- Glandular cheilitis
- Hypertrophy of lips
- Perlèche NEC
Other codes that can never be billed with K13.0
These codes carry an Excludes1 note pointing at K13.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K13.0 alone.
- K12Stomatitis and related lesions
Risk adjustment
K13.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
K13.0 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56766Billing and Coding: Incision and Drainage (I&D) of Abscess of Skin, Subcutaneous and Accessory Structures
How K13.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K13.0.
- Angulus infectiosus(lips)
- Baelz's disease(cheilitis glandularis apostematosa)
- Cheilitis(acute) (angular) (catarrhal) (chronic) (exfoliative) (gangrenous) (glandular) (infectional) (suppurative) (ulcerative) (vesicular)
- Cheilodynia
- Cheilosis(angular)
- Myxadenitis labialis
- Perlèche NEC
- Puente's disease(simple glandular cheilitis)
- Abscess›lip
- Atrophy, atrophic›lip
- Cellulitis›lip
- Cyst›lip(gland)
Related codes at this level
Codes that share K13. If K13.0 is not quite right, the correct code is usually one of these.
Questions about K13.0
- Is K13.0 a billable ICD-10-CM code?
- Yes. K13.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K13.0 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Diseases of oral cavity and salivary glands (K00-K14).
- What cannot be coded together with K13.0?
- K13.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.