H16.9

Billable

ChapterH00–H59

Ranksubcategory

Official Description

Unspecified keratitis

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 7: Diseases of the Eye and Adnexa (H00-H59).

General instructions are available for the parent sections:

View CH7 Notes

Clinical Hierarchy

CH7Diseases of the eye and adnexa (H00-H59)

H15-H22Disorders of sclera, cornea, iris and ciliary body (H15-H22)

H16Keratitis

H16.9Unspecified keratitis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H16.9:

chapterCH7

Diseases of the eye and adnexa (H00-H59)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to H16.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Keratitis (nodular) (nonulcerative) (simple) (zonular)1 unique routes

Direct index entry→H16.9

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 124

Other Disorders of the Eye with MCC or Thrombolytic Agent

DRG 125

Other Disorders of the Eye without MCC

Cross Reference

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Find surgical and procedural codes related to Unspecified keratitis.

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