C32.9
BillableMalignant neoplasm of larynx, unspecified
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 of the larynx (voice box) when the specific location within the larynx cannot be determined or is not documented.
Coding Tips
- •This is a default code used when the laryngeal subsite is not specified in the documentation
- •Attempt to query the provider or review pathology reports to identify the specific laryngeal site
Clinical Significance
Unspecified laryngeal cancer is used when malignancy is confirmed in the larynx but the specific subsite (glottis, supraglottis, subglottis) cannot be determined. Since treatment and prognosis vary significantly by laryngeal subsite, this code represents a documentation gap that should prompt provider query and record review.
Documentation Requirements
- ✓Pathology or clinical confirmation of laryngeal malignancy
- ✓Evidence that laryngoscopy or imaging was reviewed for subsite detail
- ✓Provider query documentation for subsite specificity
- ✓Treatment status and clinical stage
- ✓Reason specificity cannot be determined
Commonly Confused Codes
C32.0 — Glottic cancer: Most common laryngeal subsite; review records carefully before defaulting to unspecifiedC32.1 — Supraglottic cancer: Second most common subsite; usually identifiable on laryngoscopyC14.1 — Malignant neoplasm of laryngopharynx: Hypopharyngeal cancers may be confused with laryngeal cancersC32.8 — Overlapping sites: If multiple subsites are involved, use overlapping rather than unspecified