H18.4 - Corneal degeneration
- Applicable to Corneal degeneration
- The 2025 edition of ICD10-CM H18.4 became effective on October 1, 2024.
- This is the American ICD10-CM version of H18.4 - other international versions of ICD10 H18.4 may differ.
- H18.4 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- H18.4 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- H18.4 - Corneal degeneration
- H18.4 - Corneal degeneration
- H18.40 - Unspecified corneal degeneration
- H18.41 - Arcus senilis
- H18.411 - Arcus senilis, right eye
- H18.412 - Arcus senilis, left eye
- H18.413 - Arcus senilis, bilateral
- H18.419 - Arcus senilis, unspecified eye
- H18.42 - Band keratopathy
- H18.421 - Band keratopathy, right eye
- H18.422 - Band keratopathy, left eye
- H18.423 - Band keratopathy, bilateral
- H18.429 - Band keratopathy, unspecified eye
- H18.43 - Other calcerous corneal degeneration
- H18.44 - Keratomalacia
- H18.441 - Keratomalacia, right eye
- H18.442 - Keratomalacia, left eye
- H18.443 - Keratomalacia, bilateral
- H18.449 - Keratomalacia, unspecified eye
- H18.45 - Nodular corneal degeneration
- H18.451 - Nodular corneal degeneration, right eye
- H18.452 - Nodular corneal degeneration, left eye
- H18.453 - Nodular corneal degeneration, bilateral
- H18.459 - Nodular corneal degeneration, unspecified eye
- H18.46 - Peripheral corneal degeneration
- H18.461 - Peripheral corneal degeneration, right eye
- H18.462 - Peripheral corneal degeneration, left eye
- H18.463 - Peripheral corneal degeneration, bilateral
- H18.469 - Peripheral corneal degeneration, unspecified eye
- H18.49 - Other corneal degeneration
Type 1 Excludes
- Mooren's ulcer (H16.0-)
- recurrent erosion of cornea (H18.83-)
The following codes above H18.4 contain annotation back-references that may be applicable to H18.4:
Chapter: H00-H59 Diseases of the eye and adnexa
Section: H15-H22 Disorders of sclera, cornea, iris and ciliary body
Category: H18 Other disorders of cornea
Non-Billable/Non-Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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