2021 ICD-10-CM Diagnosis Code S99.921S

Unspecified injury of right foot, sequela

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • S99.921S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM S99.921S became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S99.921S - other international versions of ICD-10 S99.921S may differ.
The following code(s) above S99.921S 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 S99.921S:
  • 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
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.
  • S99.921S is considered exempt from POA reporting.
ICD-10-CM S99.921S is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 913 Traumatic injury with mcc
  • 914 Traumatic injury without mcc

Convert S99.921S 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 S99.921S
S99.912D …… subsequent encounter
S99.912S …… sequela
S99.919 Unspecified injury of unspecified ankle
S99.919A …… initial encounter
S99.919D …… subsequent encounter
S99.919S …… sequela
S99.92 Unspecified injury of foot
S99.921 Unspecified injury of right foot
S99.921A …… initial encounter
S99.921D …… subsequent encounter
S99.921S …… sequela
S99.922 Unspecified injury of left foot
S99.922A …… initial encounter
S99.922D …… subsequent encounter
S99.922S …… sequela
S99.929 Unspecified injury of unspecified foot
S99.929A …… initial encounter
S99.929D …… subsequent encounter
S99.929S …… sequela
T07 Unspecified multiple injuries
T07.XXXA Unspecified multiple injuries, initial encounter

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