2022 ICD-10-CM Code H18.509

Unspecified hereditary corneal dystrophies, unspecified eye

Version 2021

Valid for Submission

Short Description:Unspecified hereditary corneal dystrophies, unspecified eye
Long Description:Unspecified hereditary corneal dystrophies, unspecified eye

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Other disorders of cornea (H18)

H18.509 is a billable diagnosis code used to specify a medical diagnosis of unspecified hereditary corneal dystrophies, unspecified eye. The code H18.509 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H18.509 might also be used to specify conditions or terms like cornea farinata, corneal cerebellar syndrome, corneal dystrophy, dystrophy of anterior cornea, hereditary corneal dystrophy , ophthalmomandibulomelic dysplasia, etc.

Unspecified diagnosis codes like H18.509 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Replacement Code

H18509 replaces the following previously assigned ICD-10 code(s):

Code History

  • FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021