2021 ICD-10-CM Diagnosis Code S91.009S

Unspecified open wound, unspecified ankle, sequela

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • S91.009S 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 S91.009S became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S91.009S - other international versions of ICD-10 S91.009S may differ.
The following code(s) above S91.009S 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 S91.009S:
  • 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
  • S91
    ICD-10-CM Diagnosis Code S91

    Open wound of ankle, foot and toes

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated wound infection
    Type 1 Excludes
    • open fracture of ankle, foot and toes (S92.-with 7th character B)
    • traumatic amputation of ankle and foot (S98.-)
    Open wound of ankle, foot and toes
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.
  • S91.009S is considered exempt from POA reporting.
ICD-10-CM S91.009S 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

Convert S91.009S 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 S91.009S
S91.001A …… initial encounter
S91.001D …… subsequent encounter
S91.001S …… sequela
S91.002 Unspecified open wound, left ankle
S91.002A …… initial encounter
S91.002D …… subsequent encounter
S91.002S …… sequela
S91.009 Unspecified open wound, unspecified ankle
S91.009A …… initial encounter
S91.009D …… subsequent encounter
S91.009S …… sequela
S91.01 Laceration without foreign body of ankle
S91.011 Laceration without foreign body, right ankle
S91.011A …… initial encounter
S91.011D …… subsequent encounter
S91.011S …… sequela
S91.012 Laceration without foreign body, left ankle
S91.012A …… initial encounter
S91.012D …… subsequent encounter
S91.012S …… sequela
S91.019 Laceration without foreign body, unspecified ankle

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