ICD-10-CM 2027
ICD-10 code for lens cyst
From the official ICD-10-CM alphabetic index entry “Cyst (colloid) (mucous) (simple) (retention) › lens”. Page updated September 29, 2026.
About coding lens cyst
The ICD-10-CM code for lens cyst is H27.8 (Other specified disorders of lens). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on H27.8.
Within H27, choose H27.8 (Other specified disorders of lens) only when documentation doesn't support a more specific option: aphakia (H27.0), dislocation of lens (H27.1) and unspecified disorder of lens (H27.9).
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 lens cyst codes (official index)
- congenital Q12.8 — Other congenital lens malformations
Common questions about lens cyst ICD-10 codes
What is the ICD-10 code for lens cyst?
- H27.8 — Other specified disorders of lens. More specific codes apply when the documentation supports them: Q12.8.
What is the ICD-10 code for congenital lens cyst?
- Q12.8 — Other congenital lens malformations.
Is H27.8 billable?
- Yes. H27.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H27.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H27.8 as a principal diagnosis.
Is H27.8 a CC or MCC?
- No. H27.8 is neither a CC nor an MCC under MS-DRG v44.0.