Q12.3 Congenital aphakia

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 743.35 Congenital aphakia

Code annotations containing back-references to Q12.3

Back-references to Q12.3

• Type 1 Excludes: H27.0 Aphakia ("congenital absence of lens (Q12.3)")
• Type 1 Excludes: H27.0 Aphakia ("congenital aphakia (Q12.3)")

Back-references to Q12

• Type 1 Excludes: H27 Other disorders of lens ("congenital lens malformations (Q12.-)")

Diagnosis Index entries for Q12.3

• Absence (of) (organ or part) (complete or partial) › lens (acquired) › congenital
• Agenesis › lens
• Aphakia (acquired) (postoperative) › congenital

Nearby codes

• Q12 Congenital lens malformations
• Q12.0 Congenital cataract
• Q12.1 Congenital displaced lens
• Q12.2 Coloboma of lens
• Q12.3 Congenital aphakia (this code)
• Q12.4 Spherophakia
• Q12.8 Other congenital lens malformations
• Q12.9 Congenital lens malformation, unspecified