All ICD10 Codes

K12.31

Billable
ChapterK00–K95
Ranksubcategory
Official Description

Oral mucositis (ulcerative) due to antineoplastic therapy

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

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)
General instructions are available for the parent sections:
View CH11 NotesView K12 NotesView K12.3 Notes

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K00-K14Diseases of oral cavity and salivary glands (K00-K14)
K12Stomatitis and related lesions
K12.3Oral mucositis (ulcerative)
K12.31Oral mucositis (ulcerative) due to antineoplastic therapyBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K12.31:

subcategoryK12.3
Oral mucositis (ulcerative)
View context instructions
categoryK12
Stomatitis and related lesions
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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