2020 ICD-10-CM Diagnosis Code Q66.9

Congenital deformity of feet, unspecified

    2016 2017 2018 2019 2020 - Converted to Parent Code Non-Billable/Non-Specific Code
  • Q66.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • ICD-10-CM Q66.9 is a new 2020 ICD-10-CM code that became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q66.9 - other international versions of ICD-10 Q66.9 may differ.
The following code(s) above Q66.9 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 Q66.9:
  • Q00-Q99
    2020 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q66
    ICD-10-CM Diagnosis Code Q66

    Congenital deformities of feet

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reduction defects of feet (Q72.-)
    • valgus deformities (acquired) (M21.0-)
    • varus deformities (acquired) (M21.1-)
    Congenital deformities of feet
Approximate Synonyms
  • Congenital deformity of bilateral feet
  • Congenital deformity of bilateral toes
  • Congenital deformity of foot
  • Congenital deformity of left calcaneus
  • Congenital deformity of left foot
  • Congenital deformity of left toe
  • Congenital deformity of right calcaneus
  • Congenital deformity of right foot
  • Congenital deformity of right toe
  • Foot anomaly
Clinical Information
  • Alterations or deviations from normal shape or size which result in a disfigurement of the foot occurring at or before birth.
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

Diagnosis Index entries containing back-references to Q66.9:

ICD-10-CM Codes Adjacent To Q66.9
Q66.6 Other congenital valgus deformities of feet
Q66.7 Congenital pes cavus
Q66.70 …… unspecified foot
Q66.71 …… right foot
Q66.72 …… left foot
Q66.8 Other congenital deformities of feet
Q66.80 Congenital vertical talus deformity, unspecified foot
Q66.81 Congenital vertical talus deformity, right foot
Q66.82 Congenital vertical talus deformity, left foot
Q66.89 Other specified congenital deformities of feet
Q66.9 Congenital deformity of feet, unspecified
Q66.90 …… unspecified foot
Q66.91 …… right foot
Q66.92 …… left foot
Q67 Congenital musculoskeletal deformities of head, face, spine and chest
Q67.0 Congenital facial asymmetry
Q67.1 Congenital compression facies
Q67.2 Dolichocephaly
Q67.3 Plagiocephaly
Q67.4 Other congenital deformities of skull, face and jaw
Q67.5 Congenital deformity of spine

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