ICD-10-CM 2027
ICD-10 code for cornea cicatrix
From the official ICD-10-CM alphabetic index entry “Cicatrix (adherent) (contracted) (painful) (vicious) › cornea”. Page updated September 29, 2026.
About coding cornea cicatrix
The ICD-10-CM code for cornea cicatrix is H17.9 (Unspecified corneal scar and opacity). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on H17.9.
Within H17, choose H17.9 (Unspecified corneal scar and opacity) only when documentation doesn't support a more specific option: adherent leukoma (H17.0), central corneal opacity (H17.1) and other corneal scars and opacities (H17.8).
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 cornea cicatrix codes (official index)
- tuberculous A18.59 — Other tuberculosis of eye
Common questions about cornea cicatrix ICD-10 codes
What is the ICD-10 code for cornea cicatrix?
- H17.9 — Unspecified corneal scar and opacity. More specific codes apply when the documentation supports them: A18.59.
What is the ICD-10 code for tuberculous cornea cicatrix?
- A18.59 — Other tuberculosis of eye.
Is H17.9 billable?
- Yes. H17.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H17.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H17.9 as a principal diagnosis.
Is H17.9 a CC or MCC?
- No. H17.9 is neither a CC nor an MCC under MS-DRG v44.0.