H18.59 Other hereditary corneal dystrophies

The ICD-10-CM code for Other hereditary corneal dystrophies is H18.59 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

7: Diseases of the eye and adnexa (H00-H59)

Section

H15-H22: Disorders of sclera, cornea, iris and ciliary body (H15-H22)

Category H18

201 codes (155 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to H18.59:

• Dystrophy, dystrophia › cornea (hereditary) › specified type NEC

U.S. Hospital Utilization

• An estimated 90 U.S. inpatient stays in 2020 included H18.59 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Glaucoma (TOC entry)

a. Glaucoma .............................................................................................................................. 48

Assigning glaucoma codes (use as many H40 codes as needed)

Assign as many codes from category H40, Glaucoma, as needed to identify the type of glaucoma, the affected eye, and the glaucoma stage.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference H18.59 with the canonical source and edition:

H18.59 — Other hereditary corneal dystrophies. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/H18.59

Canonical URL: https://icd10codingpro.com/codes/H18.59