ICD-10-CM 2027
ICD-10 code for Plateau iris syndrome
From the official ICD-10-CM alphabetic index entry “Plateau iris syndrome (post-iridectomy) (postprocedural) (without glaucoma)”. Page updated September 29, 2026.
About coding Plateau iris syndrome
The ICD-10-CM code for Plateau iris syndrome is H21.82 (Plateau iris syndrome (post-iridectomy) (postprocedural)). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on H21.82.
Within H21.8 (other specified disorders of iris and ciliary body), H21.82 is specifically for Plateau iris syndrome (post-iridectomy) (postprocedural). Related codes cover Floppy iris syndrome (H21.81) and other specified disorders of iris and ciliary body (H21.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Plateau iris syndrome codes (official index)
- with glaucoma H40.22 — Chronic angle-closure glaucoma
Common questions about Plateau iris syndrome ICD-10 codes
What is the ICD-10 code for Plateau iris syndrome?
- H21.82 — Plateau iris syndrome (post-iridectomy) (postprocedural). More specific codes apply when the documentation supports them: H40.22.
Is H21.82 billable?
- Yes. H21.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H21.82 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H21.82 as a principal diagnosis.
Is H21.82 a CC or MCC?
- No. H21.82 is neither a CC nor an MCC under MS-DRG v44.0.