C10.2
BillableMalignant neoplasm of lateral wall of oropharynx
HCC Category Mapping
V28HCC 21 — Breast, Prostate, Colorectal and Other Cancers and Tumors
0.545V24HCC 11 — Colorectal, Bladder, and Other Cancers
0.306ESRDHCC 11 — Colorectal, Bladder, and Other Cancers
0.000What This Code Means
Cancer located on the side wall of the oropharynx, the middle section of the throat behind the mouth.
Coding Tips
- •The lateral wall refers to the right or left side of the oropharynx, typically involving the pharyngeal wall tissue
- •Document whether the cancer is on the right lateral wall, left lateral wall, or bilateral to support medical necessity
Clinical Significance
Malignant neoplasm of the lateral wall of the oropharynx involves cancer of the side wall of the middle throat, which includes the tonsillar region and lateral pharyngeal tissue. This site often presents with referred ear pain and cervical lymphadenopathy, and HPV-related cancers are increasingly common here.
Documentation Requirements
- ✓Pathology-confirmed malignancy with histological type
- ✓Documentation specifying lateral wall location (right or left)
- ✓HPV/p16 status
- ✓Assessment of extension to tonsil, soft palate, or tongue base
- ✓TNM staging with nodal evaluation
Commonly Confused Codes
C09.0 — Tonsillar fossa; the lateral wall includes the tonsillar region but extends beyond itC10.3 — Posterior wall of oropharynx; distinguish lateral (side) from posterior (back) wallC10.8 — Overlapping sites of oropharynx; use when tumor spans lateral wall and other oropharyngeal subsitesC10.9 — Oropharynx, unspecified; avoid when lateral wall is documented
Code Hierarchy
└C10Malignant neoplasm of oropharynx└C10.2Malignant neoplasm of lateral wall of oropharynx
└C10.2Malignant neoplasm of lateral wall of oropharynx