H18.712
Billable codeCorneal ectasia, left eye
The ICD-10 code for corneal ectasia, left eye is H18.712.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- H18.711Corneal ectasia, right eye
- H18.713Corneal ectasia, bilateral
- H18.719Corneal ectasia, unspecified eye
- H18.712Corneal ectasia, left eye
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 37171Approximate match
Associated MS-DRGs
H18.712 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.