2021 ICD-10-CM Diagnosis Code Q70

Syndactyly

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • Q70 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM Q70 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q70 - other international versions of ICD-10 Q70 may differ.
The following code(s) above Q70 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 Q70:
  • Q00-Q99
    2021 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
Clinical Information
  • A congenital anomaly of the hand or foot, marked by the webbing between adjacent fingers or toes. Syndactylies are classified as complete or incomplete by the degree of joining. Syndactylies can also be simple or complex. Simple syndactyly indicates joining of only skin or soft tissue; complex syndactyly marks joining of bony elements.
  • A congenital condition characterized by webbing between the fingers and/or toes, joining the digits together. In rare cases, the joining of the fingers or toes may involve bony fusion between the digits. Common causes include down syndrome and hereditary syndactyly.
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
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to Q70:
  • Type 1 Excludes: Q74
    ICD-10-CM Diagnosis Code Q74

    Other congenital malformations of limb(s)

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
ICD-10-CM Codes Adjacent To Q70
Q68.3 Congenital bowing of femur
Q68.4 Congenital bowing of tibia and fibula
Q68.5 Congenital bowing of long bones of leg, unspecified
Q68.6 Discoid meniscus
Q68.8 Other specified congenital musculoskeletal deformities
Q69 Polydactyly
Q69.0 Accessory finger(s)
Q69.1 Accessory thumb(s)
Q69.2 Accessory toe(s)
Q69.9 Polydactyly, unspecified
Q70 Syndactyly
Q70.0 Fused fingers
Q70.00 …… unspecified hand
Q70.01 …… right hand
Q70.02 …… left hand
Q70.03 …… bilateral
Q70.1 Webbed fingers
Q70.10 …… unspecified hand
Q70.11 …… right hand
Q70.12 …… left hand
Q70.13 …… bilateral

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