H53.55 Tritanomaly

Billable ICD-10-CM code, FY2026.

Applicable to

• Tritanopia

Applies from H53.5 Color vision deficiencies

Applicable to

• Color blindness

Excludes2 (not included here)

• day blindness (H53.11)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 368.53 Tritan defect

Diagnosis Index entries for H53.55

• Deficiency, deficient › color vision › tritanomaly
• Trichromat, trichromatopsia, anomalous (congenital)
• Tritanomaly, tritanopia

Nearby codes

• H53.50 Unspecified color vision deficiencies
• H53.51 Achromatopsia
• H53.52 Acquired color vision deficiency
• H53.53 Deuteranomaly
• H53.54 Protanomaly
• H53.55 Tritanomaly (this code)
• H53.59 Other color vision deficiencies
• H53.6 Night blindness
• H53.60 Unspecified night blindness
• H53.61 Abnormal dark adaptation curve
• H53.62 Acquired night blindness