H05.021 Osteomyelitis of right orbit

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from H05 Disorders of orbit

Excludes1 (never code together)

• congenital malformation of orbit (Q10.7)

MS-DRG index

Defines the logic of DRG(s) 121-122 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 376.03 Orbital osteomyelitis (approximate)

Code annotations containing back-references to H05.021

Back-references to H05.0

• Type 2 Excludes: L02.0 Cutaneous abscess, furuncle and carbuncle of face ("abscess of orbit (H05.0)")
• Type 2 Excludes: M86 Osteomyelitis ("orbit (H05.0-)")

Nearby codes

• H05.011 Cellulitis of right orbit
• H05.012 Cellulitis of left orbit
• H05.013 Cellulitis of bilateral orbits
• H05.019 Cellulitis of unspecified orbit
• H05.02 Osteomyelitis of orbit
• H05.021 Osteomyelitis of right orbit (this code)
• H05.022 Osteomyelitis of left orbit
• H05.023 Osteomyelitis of bilateral orbits
• H05.029 Osteomyelitis of unspecified orbit
• H05.03 Periostitis of orbit
• H05.031 Periostitis of right orbit