MCMedicalCodingSoftware
H18.713

H18.713Corneal ectasia, bilateral

Billable / specific codeICD-10-CMbilateral

H18.713 is a billable, specific ICD-10-CM code for corneal ectasia, bilateral. It is valid for submission on a claim.

Excludes1 inherited from the categories above H18.713

These are not written on H18.713, but they bind it: a note on a category applies to every code beneath it. Billing H18.713 with anything listed here is a denial.

Written on H18.7 Other and unspecified corneal deformities

Risk adjustment

H18.713 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H18.713 is named in 6 Medicare coverage policies 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56816Billing and Coding: Computerized Corneal Topography
  • A56916Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A57068Billing and Coding: Ocular Photography - External

Code history

H18.713 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H18.71. If H18.713 is not quite right, the correct code is usually one of these.

Questions about H18.713

Is H18.713 a billable ICD-10-CM code?
Yes. H18.713 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H18.713 sit in the tabular list?
Diseases of the eye and adnexa (H00-H59), in the block Disorders of sclera, cornea, iris and ciliary body (H15-H22).
What cannot be coded together with H18.713?
H18.713 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H18.713 (H18.7) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.