2021 ICD-10-CM Diagnosis Code S90.9

Unspecified superficial injury of ankle, foot and toe

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • S90.9 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 S90.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S90.9 - other international versions of ICD-10 S90.9 may differ.
The following code(s) above S90.9 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 S90.9:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    • 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
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 S90.9
S90.871D …… subsequent encounter
S90.871S …… sequela
S90.872 Other superficial bite of left foot
S90.872A …… initial encounter
S90.872D …… subsequent encounter
S90.872S …… sequela
S90.879 Other superficial bite of unspecified foot
S90.879A …… initial encounter
S90.879D …… subsequent encounter
S90.879S …… sequela
S90.9 Unspecified superficial injury of ankle, foot and toe
S90.91 Unspecified superficial injury of ankle
S90.911 Unspecified superficial injury of right ankle
S90.911A …… initial encounter
S90.911D …… subsequent encounter
S90.911S …… sequela
S90.912 Unspecified superficial injury of left ankle
S90.912A …… initial encounter
S90.912D …… subsequent encounter
S90.912S …… sequela
S90.919 Unspecified superficial injury of unspecified ankle

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