2022 ICD-10-CM Diagnosis Code Q66.90

Congenital deformity of feet, unspecified, unspecified foot

    2020 - New Code 2021 2022 Billable/Specific Code POA Exempt
  • Q66.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM Q66.90 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of Q66.90 - other international versions of ICD-10 Q66.90 may differ.
The following code(s) above Q66.90 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 Q66.90:
  • Q00-Q99
    2022 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 2021 2022 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
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q66.90 is considered exempt from POA reporting.
ICD-10-CM Q66.90 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 564 Other musculoskeletal system and connective tissue diagnoses with mcc
  • 565 Other musculoskeletal system and connective tissue diagnoses with cc
  • 566 Other musculoskeletal system and connective tissue diagnoses without cc/mcc
Code History
  • 2020 (effective 10/1/2019): New code
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
ICD-10-CM Codes Adjacent To Q66.90
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
Q67.6 Pectus excavatum

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