2020 ICD-10-CM Diagnosis Code Q66.6

Other congenital valgus deformities of feet

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q66.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM Q66.6 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q66.6 - other international versions of ICD-10 Q66.6 may differ.
Applicable To
  • Congenital metatarsus valgus
The following code(s) above Q66.6 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 Q66.6:
  • Q00-Q99
    2020 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • 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
  • Bilateral talipes valgus
  • Congenital bilateral hallux valgus
  • Congenital bilateral pes valgoplanus
  • Congenital hallux valgus
  • Congenital hallux valgus of left great toe
  • Congenital hallux valgus of right great toe
  • Congenital left hallux valgus
  • Congenital left pes valgoplanus
  • Congenital pes valgo planus of left foot
  • Congenital pes valgoplanus
  • Congenital right hallux valgus
  • Congenital right pes valgoplanus
  • Hallux valgus, congenital
  • Left talipes valgus
  • Pes valgoplanus congenital
  • Right talipes valgus
  • Talipes valgus
  • Talipes valgus of left foot
  • Talipes valgus of right foot
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.
  • Q66.6 is considered exempt from POA reporting.
ICD-10-CM Q66.6 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 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

Convert Q66.6 to ICD-9-CM

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): No change
Code annotations containing back-references to Q66.6:
  • Type 1 Excludes: M21.0
    ICD-10-CM Diagnosis Code M21.0

    Valgus deformity, not elsewhere classified

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • metatarsus valgus (Q66.6)
    • talipes calcaneovalgus (Q66.4-)

Diagnosis Index entries containing back-references to Q66.6:
  • 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
  • Eversion
  • Hallux
    • valgus (acquired) M20.1-
      ICD-10-CM Diagnosis Code M20.1-

      Hallux valgus (acquired)

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      Type 2 Excludes
      • congenital Q66.6
  • Metatarsus, metatarsal - see also condition
    • valgus Q66.6 (abductus)
  • Pes (congenital) - see also Talipes
    • valgus Q66.6
  • 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
    • equinovalgus Q66.6
    • planovalgus Q66.6
    • valgus Q66.6

ICD-10-CM Codes Adjacent To Q66.6
Q66.31 …… right foot
Q66.32 …… left foot
Q66.4 Congenital talipes calcaneovalgus
Q66.40 …… unspecified foot
Q66.41 …… right foot
Q66.42 …… left foot
Q66.5 Congenital pes planus
Q66.50 …… unspecified foot
Q66.51 …… right foot
Q66.52 …… left foot
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

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