H10-H11 — Disorders of conjunctiva
ICD-10-CM codes H10-H11 cover disorders of conjunctiva, within diseases of the eye and adnexa. The block holds 219 codes across 2 categories, of which 167 are billable and 52 are header codes that cannot be submitted on a claim.
What else to watch in H10-H11
- 80 codes are laterality-specific. They come in left and right pairs, and the pair is mutually exclusive on a single site: coding both without a bilateral code is a contradiction a scrubber should catch before the payer does.
- 126 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.