Coding and coverage · ICD-10-CM
H21 Other disorders of iris and ciliary body
Report one of the more specific codes below.
Codes under this one
- H21.0 HyphemaHeader
- H21.1 Other vascular disorders of iris and ciliary bodyHeader
- H21.2 Degeneration of iris and ciliary bodyHeader
- H21.3 Cyst of iris, ciliary body and anterior chamberHeader
- H21.4 Pupillary membranesHeader
- H21.5 Other and unspecified adhesions and disruptions of iris and ciliary bodyHeader
- H21.8 Other specified disorders of iris and ciliary bodyHeader
- H21.9 Unspecified disorder of iris and ciliary body
Instructional notes
Chapter 7
Excludes2Not included here: the patient may have both; report both when both are present.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Notes
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Chapter 7: Diseases of the eye and adnexa · H15-H22 Disorders of sclera, cornea, iris and ciliary body (H15-H22)
Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.
Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.