DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Q12 Congenital lens malformations

  • Header · not billable

Q12 is not billable. The category heads 7 billable codes in FY2027: the 7 codes directly below it.

Index → code

  • Spherophakia → Q12.4
  • Tunica vasculosa lentis → Q12.2
  • Microlentia (congenital) → Q12.8

Where it sits

  1. Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
  2. Q10-Q18 Congenital malformations of eye, ear, face and neck (Q10-Q18)
  3. Q12 Congenital lens malformations
Billable codes
7
Subdivisions
7
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
41

Codes in Q12

  1. Q12.0
    Congenital cataract
    BillableExempt
  2. Q12.1
    Congenital displaced lens
    BillableExempt
  3. Q12.2
    Coloboma of lens
    BillableExempt
  4. Q12.3
    Congenital aphakia
    BillableExempt
  5. Q12.4
    Spherophakia
    BillableExempt
  6. Q12.8
    Other congenital lens malformations
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Microphakia
  7. Q12.9
    Congenital lens malformation, unspecified
    BillableExempt

Sources of each column.

Instructions

Notes that also apply

Block Q10-Q18 instructions (Excludes2 7): printed on the block page.

Chapter 17 instructions (Notes 1, Excludes2 1): printed on the chapter 17 page.

Index entries

  • Tunica vasculosa lentis → Q12.2
  • Sphericity, increased, lens (congenital) → Q12.4
  • Spherophakia → Q12.4
  • Lenticonus (anterior) (posterior) (congenital) → Q12.8
  • Lentiglobus (posterior) (congenital) → Q12.8
  • Microlentia (congenital) → Q12.8
  • Microphakia (congenital) → Q12.8
  • Bluedot cataract → Q12.0
  • Cataract (cortical) (immature) (incipient)blue → Q12.0
  • Cataract (cortical) (immature) (incipient)central → Q12.0
  • Cataract (cortical) (immature) (incipient)cerulean → Q12.0
  • Cataract (cortical) (immature) (incipient)congenital → Q12.0
  • Cataract (cortical) (immature) (incipient)coraliform → Q12.0
  • Cataract (cortical) (immature) (incipient)coronary → Q12.0
  • Cataract (cortical) (immature) (incipient)crystalline → Q12.0
  • Cataract (cortical) (immature) (incipient)zonular (perinuclear) → Q12.0
  • Cataractacentralis pulverulenta → Q12.0
  • Cataractacerulea → Q12.0
  • Cataractacongenita → Q12.0
  • Cataractacoralliformis → Q12.0
  • Cataractacoronaria → Q12.0
  • Displacement, displacedlens, congenital → Q12.1
  • Ectopic, ectopia (congenital)lens, lentis → Q12.1
  • Coloboma (iris)lens → Q12.2
  • Persistence, persistent (congenital)tunica vasculosa lentis → Q12.2
  • Agenesislens → Q12.3
  • Aphakia (acquired) (postoperative)congenital → Q12.3
  • Increase, increasedsphericity, lens → Q12.4
  • Distortion(s) (congenital)lens → Q12.8
  • Hypoplasia, hypoplasticzonule (ciliary) → Q12.8
  • Persistence, persistent (congenital)capsule (opaque) → Q12.8
  • Anomaly, anomalous (congenital) (unspecified type)lens → Q12.9
  • Cataract (cortical) (immature) (incipient)anteriorand posterior axial embryonal → Q12.0
  • Cataract (cortical) (immature) (incipient)anteriorpyramidal → Q12.0
  • Cataract (cortical) (immature) (incipient)nuclearembryonal → Q12.0
  • Cataractamembranaceacongenita → Q12.0
  • Dislocation (articular)lens (complete)congenital → Q12.1
  • Luxationlens (old) (partial) (spontaneous)congenital → Q12.1
  • Absence (of) (organ or part) (complete or partial)lens (acquired)congenital → Q12.3
  • Cyst (colloid) (mucous) (simple) (retention)lenscongenital → Q12.8

1 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy