2020 ICD-10-CM Diagnosis Code S56.399D

Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, subsequent encounter

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • S56.399D is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Inj extn/abdr musc/fasc/tend of thmb at forearm level, subs
  • The 2020 edition of ICD-10-CM S56.399D became effective on October 1, 2019.
  • This is the American ICD-10-CM version of S56.399D - other international versions of ICD-10 S56.399D may differ.
The following code(s) above S56.399D 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 S56.399D:
  • S00-T88
    2020 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
  • S50-S59
    2020 ICD-10-CM Range S50-S59

    Injuries to the elbow and forearm

    Type 2 Excludes
    Injuries to the elbow and forearm
  • S56
    ICD-10-CM Diagnosis Code S56

    Injury of muscle, fascia and tendon at forearm level

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code Also
    • any associated open wound (S51.-)
    Type 2 Excludes
    • injury of muscle, fascia and tendon at or below wrist (S66.-)
    • sprain of joints and ligaments of elbow (S53.4-)
    Injury of muscle, fascia and tendon at forearm level
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.
  • S56.399D is considered exempt from POA reporting.
ICD-10-CM S56.399D is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 949 Aftercare with cc/mcc
  • 950 Aftercare without cc/mcc

Convert S56.399D 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
ICD-10-CM Codes Adjacent To S56.399D
S56.391 Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level
S56.391A …… initial encounter
S56.391D …… subsequent encounter
S56.391S …… sequela
S56.392 Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
S56.392A …… initial encounter
S56.392D …… subsequent encounter
S56.392S …… sequela
S56.399 Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
S56.399A …… initial encounter
S56.399D …… subsequent encounter
S56.399S …… sequela
S56.4 Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
S56.40 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
S56.401 Unspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level
S56.401A …… initial encounter
S56.401D …… subsequent encounter
S56.401S …… sequela
S56.402 Unspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level
S56.402A …… initial encounter
S56.402D …… subsequent encounter

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