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K12.3 - Oral mucositis (ulcerative)


The ICD 10 Code for Oral mucositis (ulcerative) is listed as K12.3.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: K12.3
Description: Oral mucositis (ulcerative)
  • Mucositis (oral) (oropharyneal)
  • Excludes2: gastrointestinal mucositis (ulcerative) (K92.81)
  • mucositis (ulcerative) of vagina and vulva (N76.81)
  • nasal mucositis (ulcerative) (J34.81)
Chapter Diseases of the digestive system (K00-K95)
Block Diseases of oral cavity and salivary glands (K00-K14)
Parent K12 - Stomatitis and related lesions
ICD-10-CM Children (deeper level / typically more specific) of K12.3:
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
K12.39 - Other oral mucositis (ulcerative)
ICD-10-CM Siblings (same level / similar specificity) of K12.3:
K12.0 - Recurrent oral aphthae
K12.1 - Other forms of stomatitis
K12.2 - Cellulitis and abscess of mouth