H10.221 Pseudomembranous conjunctivitis, right eye

Billable ICD-10-CM code, FY2026.

Applies from H10 Conjunctivitis

Excludes1 (never code together)

• keratoconjunctivitis (H16.2-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 372.04 Pseudomembranous conjunctivitis (approximate)

Code annotations containing back-references to H10.221

Back-references to H10.22

• Use Additional: L51 Erythema multiforme ("conjunctivitis (H10.22-)")

Nearby codes

• H10.211 Acute toxic conjunctivitis, right eye
• H10.212 Acute toxic conjunctivitis, left eye
• H10.213 Acute toxic conjunctivitis, bilateral
• H10.219 Acute toxic conjunctivitis, unspecified eye
• H10.22 Pseudomembranous conjunctivitis
• H10.221 Pseudomembranous conjunctivitis, right eye (this code)
• H10.222 Pseudomembranous conjunctivitis, left eye
• H10.223 Pseudomembranous conjunctivitis, bilateral
• H10.229 Pseudomembranous conjunctivitis, unspecified eye
• H10.23 Serous conjunctivitis, except viral
• H10.231 Serous conjunctivitis, except viral, right eye