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ICD-10-CM Codes
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Q00-Q99
Congenital malformations, deformations and chromosomal abnormalities
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Q65-Q79
Congenital malformations and deformations of the musculoskeletal system
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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.
The following code(s) above
Q66.3 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
Q66.3:
Approximate Synonyms
- 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
Code History
- 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
- 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
- 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
ICD-10-CM Codes Adjacent To Q66.3
Q66.2 Congenital metatarsus (primus) varus
Q66.21 Congenital metatarsus primus varus
Q66.22 Congenital metatarsus adductus
Q66.3
Other congenital varus deformities of feet
Q66.4 Congenital talipes calcaneovalgus
Q66.5 Congenital pes planus
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.