Q74.1

Congenital malformation of knee

Billable / specificPOA exempt

Q74.1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Congenital absence of patella
  • Congenital dislocation of patella
  • Congenital genu valgum
  • Congenital genu varum
  • Rudimentary patella

Includes (from Q74)

  • Note: Codes from this chapter are not for use on maternal records

Excludes1

Not coded here — never report together with this code.

  • congenital dislocation of knee (Q68.2)
  • congenital genu recurvatum (Q68.2)
  • nail patella syndrome (Q87.2)
  • polydactyly (Q69.-) (from Q74)
  • reduction defect of limb (Q71-Q73) (from Q74)
  • syndactyly (Q70.-) (from Q74)

Excludes2

Not included here — may be reported together when both conditions exist.

  • inborn errors of metabolism (E70-E88) (from Q74)

Also known as

  • Congenital absence of patella
  • Congenital dislocation of patella
  • Congenital genu valgum
  • Congenital genu varum
  • Rudimentary patella
  • Absence, patella, congenital
  • Agenesis, patella
  • Anomaly, anomalous, knee
  • Anomaly, anomalous, patella
  • Bifid, patella
  • Biparta, bipartite, patella
  • Dislocation, patella, congenital
  • Elongated, elongation, ligamentum patellae
  • Genu, congenital
  • Genu, extrorsum, congenital
  • Genu, introrsum, congenital
  • Genu, valgum, congenital
  • Genu, varum, congenital
  • Hypertrophy, hypertrophic, meniscus, knee, congenital
  • Hypoplasia, hypoplastic, patella

Parent code

  • Q74Other congenital malformations of limb(s)Header

Related codes

  • Q74.0Other congenital malformations of upper limb(s), including shoulder girdleBillable
  • Q74.2Other congenital malformations of lower limb(s), including pelvic girdleBillable
  • Q74.3Arthrogryposis multiplex congenitaBillable
  • Q74.8Other specified congenital malformations of limb(s)Billable
  • Q74.9Unspecified congenital malformation of limb(s)Billable

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