H16.399 Other interstitial and deep keratitis, unspecified eye

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 370.59 Other interstitial and deep keratitis (approximate)

Diagnosis Index entries for H16.399

• Keratitis (nodular) (nonulcerative) (simple) (zonular) › deep › specified type NEC

Nearby codes

• H16.339 Sclerosing keratitis, unspecified eye
• H16.39 Other interstitial and deep keratitis
• H16.391 Other interstitial and deep keratitis, right eye
• H16.392 Other interstitial and deep keratitis, left eye
• H16.393 Other interstitial and deep keratitis, bilateral
• H16.399 Other interstitial and deep keratitis, unspecified eye (this code)
• H16.4 Corneal neovascularization
• H16.40 Unspecified corneal neovascularization
• H16.401 Unspecified corneal neovascularization, right eye
• H16.402 Unspecified corneal neovascularization, left eye
• H16.403 Unspecified corneal neovascularization, bilateral