Q12.9 is the authoritative medical code for Congenital lens malformation, unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for congenital lens malformation, unspecified (ICD-10-CM Q12.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Congenital lens malformation, unspecified is a billable ICD-10-CM diagnosis code Q12.9. Excludes2 (not included here): cleft lip and cleft palate Q35-Q37; congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4); congenital malformation of larynx Q31.-; congenital malformation of lip NEC Q38.0; congenital malformation of nose Q30.-; congenital malformation of parathyroid gland Q89.2; congenital malformation of thyroid gland Q89.2.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Q12.9 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- cleft lip and cleft palate Q35-Q37
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
- congenital malformation of larynx Q31.-
- congenital malformation of lip NEC Q38.0
- congenital malformation of nose Q30.-
- congenital malformation of parathyroid gland Q89.2
- congenital malformation of thyroid gland Q89.2
Frequently Asked Questions (FAQ) & Clinical Guidance
Can Q12.9 be reported alongside related conditions?
Per Excludes2 instructions, Q12.9 and the following may both be reported when both are present: cleft lip and cleft palate (Q35-Q37); congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4); congenital malformation of larynx (Q31.-); congenital malformation of lip NEC (Q38.0).
Codes in This Family (7)
Official ICD-10-CM classifications in the same code family as Q12.9, with their registry titles.
- Q12 — Congenital lens malformations
- Q12.0 — Congenital cataract
- Q12.1 — Congenital displaced lens
- Q12.2 — Coloboma of lens
- Q12.3 — Congenital aphakia
- Q12.4 — Spherophakia
- Q12.8 — Other congenital lens malformations
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Anomaly, anomalous (congenital) (unspecified type), lens
- Deformity, lens (acquired), congenital
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Q13.9
Congenital malformation of anterior segment of eye, unspecified
ICD Code Q14.9
Congenital malformation of posterior segment of eye, unspecified
ICD Code Q16.9
Congenital malformation of ear causing impairment of hearing, unspecified