C69.20
BillableMalignant neoplasm of unspecified retina
HCC Category Mapping
V28HCC 23 — Melanoma and Other Skin Cancers
0.251V24HCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.150ESRDHCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.000RxHCCHCC 22 — Cancer, Other Specified Sites
0.000What This Code Means
A cancerous tumor of the retina (the light-sensitive tissue at the back of the eye) when the specific side is not documented.
Coding Tips
- •Use this code only when laterality cannot be determined from documentation; query provider if side is documented elsewhere
- •Retinal malignancies are often melanomas; ensure pathology confirms diagnosis before coding
Clinical Significance
Retinal malignancy encompasses two primary entities: retinoblastoma in children and uveal/retinal melanoma in adults. Both are serious sight-threatening and potentially life-threatening conditions. Retinal cancers require specialized treatment including enucleation, radiation, or chemotherapy, making them high-resource diagnoses for risk adjustment.
Documentation Requirements
- ✓Pathology or clinical diagnosis confirming malignancy (retinoblastoma versus melanoma versus other)
- ✓Laterality — this unspecified code requires a query when the affected eye can be identified
- ✓Tumor size, location on the retina, and extent of involvement
- ✓Staging (International Intraocular Retinoblastoma Classification for retinoblastoma, or AJCC for melanoma)
- ✓Genetic testing results if applicable (RB1 gene for retinoblastoma)
Commonly Confused Codes
C69.21/C69.22 — Right/left retina: always use laterality-specific codes when the affected eye is knownC69.30-C69.32 — Choroidal malignancy: the choroid is beneath the retina; verify which layer is the primary siteC79.49 — Secondary malignant neoplasm of other parts of nervous system: metastatic cancer to the retina uses secondary codesD31.20-D31.22 — Benign neoplasm of retina: confirm malignancy before using C69 codes
Code Hierarchy
└C69Malignant neoplasm of eye and adnexa└C69.2Malignant neoplasm of retina└C69.20Malignant neoplasm of unspecified retina
└C69.20Malignant neoplasm of unspecified retina