Q12 vs Q89.2
Q12 (Congenital lens malformations) compared with Q89.2 (Congenital malformations of other endocrine glands), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. Q12 carries an Excludes2 note covering Q89.2: “congenital malformation of parathyroid gland (Q89.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. Q12 carries an Excludes2 note covering Q89.2: “congenital malformation of thyroid gland (Q89.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Q12Congenital lens malformations | Q89.2Congenital malformations of other endocrine glands | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Congenital lens malformations is a non-billable ICD-10-CM category code (Q12). | Congenital malformations of other endocrine glands is a billable ICD-10-CM diagnosis code (Q89.2). |
| Includes | — | Congenital malformation of parathyroid or thyroid gland Persistent thyroglossal duct Thyroglossal cyst |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources