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K12.31 Oral mucositis (ulcerative) due to antineoplastic therapy
BackK12Stomatitis and related lesionsCategory4 →K12.0Recurrent oral aphthaeCategoryK12.1Other forms of stomatitisCategoryK12.2Cellulitis and abscess of mouthCategoryK12.3Oral mucositis (ulcerative)Category5 →K12.30Oral mucositis (ulcerative), unspecifiedCategoryK12.31Oral mucositis (ulcerative) due to antineoplastic therapyCategoryK12.32Oral mucositis (ulcerative) due to other drugsCategoryK12.33Oral mucositis (ulcerative) due to radiationCategoryK12.39Other oral mucositis (ulcerative)Category
CategoryCODABLE
K12.31
Oral mucositis (ulcerative) due to antineoplastic therapy
CODING RULE
Use additional code: code for adverse effect, if applicable, to identify antineoplastic and immunosuppressive drugs (T45.1X5)
code for other antineoplastic therapy, such as:
radiological procedure and radiotherapy (Y84.2)
code for other antineoplastic therapy, such as:
radiological procedure and radiotherapy (Y84.2)
- Chapter
- XI · Diseases of the digestive system
- Section
- K00-K14
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.