2021 ICD-10-CM Diagnosis Code S90.446A

External constriction, unspecified lesser toe(s), initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • S90.446A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: External constriction, unsp lesser toe(s), init encntr
  • The 2021 edition of ICD-10-CM S90.446A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S90.446A - other international versions of ICD-10 S90.446A may differ.
The following code(s) above S90.446A 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 S90.446A:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S90-S99
    2021 ICD-10-CM Range S90-S99

    Injuries to the ankle and foot

    Type 2 Excludes
    • burns and corrosions (T20-T32)
    • fracture of ankle and malleolus (S82.-)
    • frostbite (T33-T34)
    • insect bite or sting, venomous (T63.4)
    Injuries to the ankle and foot
  • S90.44
    ICD-10-CM Diagnosis Code S90.44

    External constriction of toe

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Hair tourniquet syndrome of toe
    External constriction of toe
ICD-10-CM S90.446A is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 604 Trauma to the skin, subcutaneous tissue and breast with mcc
  • 605 Trauma to the skin, subcutaneous tissue and breast without mcc
  • 963 Other multiple significant trauma with mcc
  • 964 Other multiple significant trauma with cc
  • 965 Other multiple significant trauma without cc/mcc

Convert S90.446A 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
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To S90.446A
S90.443S …… sequela
S90.444 External constriction, right lesser toe(s)
S90.444A …… initial encounter
S90.444D …… subsequent encounter
S90.444S …… sequela
S90.445 External constriction, left lesser toe(s)
S90.445A …… initial encounter
S90.445D …… subsequent encounter
S90.445S …… sequela
S90.446 External constriction, unspecified lesser toe(s)
S90.446A …… initial encounter
S90.446D …… subsequent encounter
S90.446S …… sequela
S90.45 Superficial foreign body of toe
S90.451 Superficial foreign body, right great toe
S90.451A …… initial encounter
S90.451D …… subsequent encounter
S90.451S …… sequela
S90.452 Superficial foreign body, left great toe
S90.452A …… initial encounter
S90.452D …… subsequent encounter

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