K13
Non-billableOther diseases of lip and oral mucosa
K13 is the ICD-10-CM code for Other diseases of lip and oral mucosa. It is a non-billable category code — use a more specific child code such as K13.0 for billing.
- Status
- Header (non-billable)
- Chapter
- K00-K95
- Subcodes
- 8
- Edition
- FY2026
K00-K95 Diseases of the digestive system
What this means — in plain language
MedlinePlus · NIHYour mouth is one of the most important parts of your body. It has many different functions. It allows you to: Take in food and drink Breathe in air Start digestion, with your teeth chewing the food you eat and your salivary glands releasing saliva to help break down the food Speak and sing Show emotion, by smiling or pouting Any problem that affects your mouth can make it hard to eat, drink, or even smile. Some…
Read more about Mouth Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •epithelial disturbances of tongue
Excludes2 — not included here
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)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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