K12.3
Non-billableOral mucositis (ulcerative)
Oral mucositis (ulcerative)
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Mucositis (oral) (oropharyneal)
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •gastrointestinal mucositis (ulcerative)K92.81
- •mucositis (ulcerative) of vagina and vulvaN76.81
- •nasal mucositis (ulcerative)J34.81
Use Additional Code
Additional codes that should follow this code
Child Codes (5)
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(3)
Frequently Asked Questions
What is the ICD-10 code for oral mucositis (ulcerative)?
The ICD-10-CM code for oral mucositis (ulcerative) is K12.3. The full clinical description is "Oral mucositis (ulcerative)". K12.3 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code K12.3 mean?
ICD-10-CM code K12.3 represents “Oral mucositis (ulcerative)”. It is classified under Chapter 11: Diseases of the Digestive System and is a non-billable header code. Use a more specific child code for billing purposes.
Is K12.3 a billable code?
No, K12.3 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under K12.3.
What chapter is K12.3 in?
K12.3 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What codes cannot be used with K12.3?
K12.3 has Excludes1 notes indicating codes that cannot be used together with it, including: cancrum oris (A69.0); cheilitis (K13.0); gangrenous stomatitis (A69.0); and 2 more.
What are the subcategories under K12.3?
K12.3 has 5 child codes, including: K12.30 (Oral mucositis (ulcerative), unspecified), K12.31 (Oral mucositis (ulcerative) due to antineoplastic therapy), K12.32 (Oral mucositis (ulcerative) due to other drugs), K12.33 (Oral mucositis (ulcerative) due to radiation), and 1 more.
Are additional codes required with K12.3?
Yes, when using K12.3, also report: ; 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).
What are the UMLS CUIs for K12.3?
K12.3 is linked to 2 UMLS Concept Unique Identifiers: C2887629, C3647482. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K12.3 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like oral mucositis (ulcerative) affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K12.3?
K12.3 maps to the ICD-11 code: DA01.Z (Disorder of oral mucosa, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.