C06

Non-Billable
ChapterC00–D49
Rankcategory
Official Description

Malignant neoplasm of other and unspecified parts of mouth

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Use Additional Code
  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • history of tobacco dependence (Z87.891)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Clinical Hierarchy

CH2Neoplasms (C00-D49)
C00-C14Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
C06Malignant neoplasm of other and unspecified parts of mouth
C06.0Malignant neoplasm of cheek mucosa
C06.1Malignant neoplasm of vestibule of mouth
C06.2Malignant neoplasm of retromolar area
C06.8Malignant neoplasm of overlapping sites of other and unspecified parts of mouth
C06.9Malignant neoplasm of mouth, unspecified

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Malignant neoplasm of other and unspecified parts of mouth.

Search PCS Codes