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H18.59 ICD-10-CM Code: Other hereditary corneal dystrophies

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Other hereditary corneal dystrophies is a non-billable ICD-10-CM category code (H18.59). A more specific billable subcode must be selected for claims submission.

Change history

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Clinical classification (AHRQ CCSR):EYE001 — Cornea and external disease (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Contextual Map

Every relationship of H18.59 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • H00-H59 — Chapter 7: Diseases of the Eye and Adnexa (H00-H59) (H00-H59) [Hierarchy]
  • H15-H22 — Disorders of sclera, cornea, iris and ciliary body [Hierarchy]

Clinical classification (CCSR)

  • EYE001 — Cornea and external disease [CCSR]

Nearest codes (40)

  • H18 — Other disorders of cornea [Sibling]
  • H18.52 — Epithelial (juvenile) corneal dystrophy [Sibling]
  • H18.521 — Epithelial (juvenile) corneal dystrophy, right eye [Sibling]
  • H18.522 — Epithelial (juvenile) corneal dystrophy, left eye [Sibling]
  • H18.523 — Epithelial (juvenile) corneal dystrophy, bilateral [Sibling]
  • H18.529 — Epithelial (juvenile) corneal dystrophy, unspecified eye [Sibling]
  • H18.53 — Granular corneal dystrophy [Sibling]
  • H18.531 — Granular corneal dystrophy, right eye [Sibling]
  • and 32 more

Change history

  • FY2021 — Became a non-billable header [Change history]

Frequently Asked Questions (FAQ) & Clinical Guidance

Can H18.59 be billed directly?

No. H18.59 (Other hereditary corneal dystrophies) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to H18.59 in its code family, with their registry titles.

  • H18.55 — Macular corneal dystrophy
  • H18.551 — Macular corneal dystrophy, right eye
  • H18.552 — Macular corneal dystrophy, left eye
  • H18.553 — Macular corneal dystrophy, bilateral
  • H18.559 — Macular corneal dystrophy, unspecified eye
  • H18.591 — Other hereditary corneal dystrophies, right eye
  • H18.592 — Other hereditary corneal dystrophies, left eye
  • H18.593 — Other hereditary corneal dystrophies, bilateral
  • H18.599 — Other hereditary corneal dystrophies, unspecified eye
  • H18.6 — Keratoconus

View all codes in the H18 family