H20.042 Secondary noninfectious iridocyclitis, left eye

Billable ICD-10-CM code, FY2026.

Applies from H20.0 Acute and subacute iridocyclitis

Applicable to

• Acute anterior uveitis
• Acute cyclitis
• Acute iritis
• Subacute anterior uveitis
• Subacute cyclitis
• Subacute iritis

Excludes1 (never code together)

• iridocyclitis, iritis, uveitis (due to) (in) diabetes mellitus (E08-E13 with .39)
• iridocyclitis, iritis, uveitis (due to) (in) diphtheria (A36.89)
• iridocyclitis, iritis, uveitis (due to) (in) gonococcal (A54.32)
• iridocyclitis, iritis, uveitis (due to) (in) herpes (simplex) (B00.51)
• iridocyclitis, iritis, uveitis (due to) (in) herpes zoster (B02.32)
• iridocyclitis, iritis, uveitis (due to) (in) late congenital syphilis (A50.39)
• iridocyclitis, iritis, uveitis (due to) (in) late syphilis (A52.71)
• iridocyclitis, iritis, uveitis (due to) (in) sarcoidosis (D86.83)
• iridocyclitis, iritis, uveitis (due to) (in) syphilis (A51.43)
• iridocyclitis, iritis, uveitis (due to) (in) toxoplasmosis (B58.09)
• iridocyclitis, iritis, uveitis (due to) (in) tuberculosis (A18.54)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 364.04 Secondary iridocyclitis, noninfectious (approximate)

Nearby codes

• H20.032 Secondary infectious iridocyclitis, left eye
• H20.033 Secondary infectious iridocyclitis, bilateral
• H20.039 Secondary infectious iridocyclitis, unspecified eye
• H20.04 Secondary noninfectious iridocyclitis
• H20.041 Secondary noninfectious iridocyclitis, right eye
• H20.042 Secondary noninfectious iridocyclitis, left eye (this code)
• H20.043 Secondary noninfectious iridocyclitis, bilateral
• H20.049 Secondary noninfectious iridocyclitis, unspecified eye
• H20.05 Hypopyon
• H20.051 Hypopyon, right eye
• H20.052 Hypopyon, left eye