1. ICD-10-CM Codes
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2. Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
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3. Q65-Q79 Congenital malformations and deformations of the musculoskeletal system
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4. Q66- Congenital deformities of feet
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2020 ICD-10-CM Diagnosis Code Q66.3

Other congenital varus deformities of feet

2016 2017 2018 2019 2020 - Converted to Parent Code Non-Billable/Non-Specific Code

• Q66.3 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• ICD-10-CM Q66.3 is a new 2020 ICD-10-CM code that became effective on October 1, 2019.
• This is the American ICD-10-CM version of Q66.3 - other international versions of ICD-10 Q66.3 may differ.

• Bilateral talipes varus
• Congenital bilateral hallux varus
• Congenital hallux varus
• Congenital varus deformity of foot
• Hallux varus, congenital
• Left talipes varus
• Right talipes varus
• Talipes varus of left foot
• Talipes varus of right foot
• Varus foot deformity, congenital

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): Deleted code
• 2020 (effective 10/1/2019): New code

• Anomaly, anomalous (congenital) (unspecified type) Q89.9
  ICD-10-CM Diagnosis Code Q89.9

  Congenital malformation, unspecified

  2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt

  Applicable To

  • Congenital anomaly NOS
  • Congenital deformity NOS
  • foot NEC Q74.2
    ICD-10-CM Diagnosis Code Q74.2

    Other congenital malformations of lower limb(s), including pelvic girdle

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt

    Applicable To

    • Congenital fusion of sacroiliac joint
    • Congenital malformation of ankle joint
    • Congenital malformation of sacroiliac joint

    Type 1 Excludes

    • anteversion of femur (neck) (Q65.89)
    • varus Q66.3- (congenital)
• Deformity Q89.9
  ICD-10-CM Diagnosis Code Q89.9

  Congenital malformation, unspecified

  2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt

  Applicable To

  • Congenital anomaly NOS
  • Congenital deformity NOS
  • foot (acquired) - see also Deformity, limb, lower leg
    • varus (congenital) Q66.3-
• Hallux
  • varus (acquired) M20.3-
    ICD-10-CM Diagnosis Code M20.3-

    Hallux varus (acquired)

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    • congenital Q66.3-
• Talipes (congenital) Q66.89
  ICD-10-CM Diagnosis Code Q66.89

  Other specified congenital deformities of feet

  2016 2017 2018 2019 - Revised Code 2020 Billable/Specific Code POA Exempt

  Applicable To

  • Congenital asymmetric talipes
  • Congenital clubfoot NOS
  • Congenital talipes NOS
  • Congenital tarsal coalition
  • Hammer toe, congenital
  • varus Q66.3-

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.