H25.12 Age-related nuclear cataract, left eye

Billable ICD-10-CM code, FY2026.

Applies from H25 Age-related cataract

Applicable to

• Senile cataract

Excludes2 (not included here)

• capsular glaucoma with pseudoexfoliation of lens (H40.1-)

Applies from H25.1 Age-related nuclear cataract

Applicable to

• Cataracta brunescens
• Nuclear sclerosis cataract

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 366.16 Senile nuclear sclerosis (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Adult diagnoses (age 15 through 124): Age conflict edit. These diagnoses are clinically expected only in patients age 15 through 124.

Nearby codes

• H25.093 Other age-related incipient cataract, bilateral
• H25.099 Other age-related incipient cataract, unspecified eye
• H25.1 Age-related nuclear cataract
• H25.10 Age-related nuclear cataract, unspecified eye
• H25.11 Age-related nuclear cataract, right eye
• H25.12 Age-related nuclear cataract, left eye (this code)
• H25.13 Age-related nuclear cataract, bilateral
• H25.2 Age-related cataract, morgagnian type
• H25.20 Age-related cataract, morgagnian type, unspecified eye
• H25.21 Age-related cataract, morgagnian type, right eye
• H25.22 Age-related cataract, morgagnian type, left eye