Disorders of iris and ciliary body in diseases classd elswhr

This code describes conditions affecting the iris and ciliary body that are secondary manifestations of another underlying systemic disease. It indicates that the primary pathology is not intrinsic to the eye structures themselves, but rather a complication or symptom of a separate, classified illness. Examples include iritis or cyclitis occurring as part of a rheumatological disorder or infectious disease.

Use this code when documentation clearly links a disorder of the iris or ciliary body (e.g., iridocyclitis, uveitis) to an underlying systemic disease that is coded elsewhere. This code requires a dual coding approach, where the primary systemic condition is sequenced first. Documentation must specify the systemic disease causing the ocular manifestation.

• Always sequence the underlying systemic disease first, followed by this code.
• Ensure the physician documentation explicitly states the causal link between the systemic disease and the iris/ciliary body disorder.
• Do not use this code for primary inflammatory conditions of the iris and ciliary body not attributed to another disease; instead, use codes from H20.-.