C69.91
BillableMalignant neoplasm of unspecified site of right eye
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
Cancer of the right eye when the specific location within the eye cannot be determined.
Coding Tips
- •Confirm right side is documented
- •Query provider if more specific anatomical site can be identified
Clinical Significance
This code for unspecified site of right eye malignancy indicates that while laterality is known, the specific anatomical structure within the eye has not been identified. This is marginally better than C69.90 but still represents a documentation gap, as ophthalmologic examination can almost always identify the involved structure.
Documentation Requirements
- ✓Confirmed malignancy of the right eye
- ✓Documentation showing right eye is affected
- ✓Query documentation for specific anatomical site within the eye
- ✓Ophthalmologic examination findings
- ✓Imaging results if available
Commonly Confused Codes
C69.92 — Left eye unspecified site: verify lateralityC69.01-C69.81 — Specific right eye structure codes: always prefer the more specific code when documentation supports itC69.90 — Both site and laterality unspecified: use C69.91 when right eye is documented even if specific site is unknownC79.49 — Secondary neoplasm: distinguish primary from metastatic eye cancer
Code Hierarchy
└C69Malignant neoplasm of eye and adnexa└C69.9Malignant neoplasm of unspecified site of eye└C69.91Malignant neoplasm of unspecified site of right eye
└C69.91Malignant neoplasm of unspecified site of right eye