H21.503 Unspecified adhesions of iris, bilateral

Billable ICD-10-CM code, FY2026.

Applies from H21 Other disorders of iris and ciliary body

Excludes2 (not included here)

• sympathetic uveitis (H44.1-)

Applies from H21.5 Other and unspecified adhesions and disruptions of iris and ciliary body

Excludes1 (never code together)

• corectopia (Q13.2)

Applies from H21.50 Unspecified adhesions of iris

Applicable to

• Synechia (iris) NOS

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 364.70 Adhesions of iris, unspecified (approximate)

Nearby codes

• H21.43 Pupillary membranes, bilateral
• H21.5 Other and unspecified adhesions and disruptions of iris and ciliary body
• H21.50 Unspecified adhesions of iris
• H21.501 Unspecified adhesions of iris, right eye
• H21.502 Unspecified adhesions of iris, left eye
• H21.503 Unspecified adhesions of iris, bilateral (this code)
• H21.509 Unspecified adhesions of iris and ciliary body, unspecified eye
• H21.51 Anterior synechiae (iris)
• H21.511 Anterior synechiae (iris), right eye
• H21.512 Anterior synechiae (iris), left eye
• H21.513 Anterior synechiae (iris), bilateral