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 period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- gastrointestinal mucositis (ulcerative) (K92.81)
- mucositis (ulcerative) of vagina and vulva (N76.81)
- nasal mucositis (ulcerative) (J34.81)
Use Additional Code
Additional codes that should follow this 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)
Child Codes (5)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code K12.3?
ICD-10-CM code K12.3 represents "Oral mucositis (ulcerative)". It 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 you should also 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).
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.
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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.