H18.2 – Other and unspecified corneal edema
ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body
ICD-10-CM code
H18.2
- Code
H18.2(claims format:H182)- Description
- Other and unspecified corneal edema
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 7. Diseases of the eye and adnexa (H00-H59)
- Block
- H15-H22 Disorders of sclera, cornea, iris and ciliary body
- Parent codes
- H18
Billable codes under H18.2
H18.2 is a header code and cannot be used on claims. Choose the most specific code:
- H18.20 – Unspecified corneal edemaBillable
- H18.21 – Corneal edema secondary to contact lensHeader (more codes below)
- H18.22 – Idiopathic corneal edemaHeader (more codes below)
- H18.23 – Secondary corneal edemaHeader (more codes below)
Index terms for H18.2
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H18
- H18.0 – Corneal pigmentations and depositsHeader
- H18.1 – Bullous keratopathyHeader
- H18.3 – Changes of corneal membranesHeader
- H18.4 – Corneal degenerationHeader
- H18.5 – Hereditary corneal dystrophiesHeader
- H18.6 – KeratoconusHeader
- H18.7 – Other and unspecified corneal deformitiesHeader
- H18.8 – Other specified disorders of corneaHeader
- H18.9 – Unspecified disorder of corneaBillable
Frequently asked questions
What is ICD-10 code H18.2?
H18.2 is the ICD-10-CM code for other and unspecified corneal edema, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
Is H18.2 a billable code?
No. H18.2 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H18.2 belong to?
It belongs to category H18 – Other disorders of cornea.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.