2021 ICD-10-CM Diagnosis Code S56

Injury of muscle, fascia and tendon at forearm level

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • S56 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 S56 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S56 - other international versions of ICD-10 S56 may differ.
Code Also
Code Also Help
A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
  • any associated open wound (
    ICD-10-CM Diagnosis Code S51
    • S51 Open wound of elbow and forearm
      • S51.0 Open wound of elbow
        • S51.00 Unspecified open wound of elbow
          • S51.001 Unspecified open wound of right elbow
            • S51.001A Unspecified open wound of right elbow, initia...
            • S51.001D Unspecified open wound of right elbow, subseq...
            • S51.001S Unspecified open wound of right elbow, sequel...
          • S51.002 Unspecified open wound of left elbow
            • S51.002A Unspecified open wound of left elbow, initial...
            • S51.002D Unspecified open wound of left elbow, subsequ...
            • S51.002S Unspecified open wound of left elbow, sequela...
          • S51.009 Unspecified open wound of unspecified elbow
            • S51.009A Unspecified open wound of unspecified elbow, ...
            • S51.009D Unspecified open wound of unspecified elbow, ...
            • S51.009S Unspecified open wound of unspecified elbow, ...
        • S51.01 Laceration without foreign body of elbow
          • S51.011 Laceration without foreign body of right elbo...
            • S51.011A Laceration without foreign body of right elbo...
            • S51.011D Laceration without foreign body of right elbo...
            • S51.011S Laceration without foreign body of right elbo...
          • S51.012 Laceration without foreign body of left elbow...
            • S51.012A Laceration without foreign body of left elbow...
            • S51.012D Laceration without foreign body of left elbow...
            • S51.012S Laceration without foreign body of left elbow...
          • S51.019 Laceration without foreign body of unspecifie...
            • S51.019A Laceration without foreign body of unspecifie...
            • S51.019D Laceration without foreign body of unspecifie...
            • S51.019S Laceration without foreign body of unspecifie...
        • S51.02 Laceration with foreign body of elbow
          • S51.021 Laceration with foreign body of right elbow
            • S51.021A Laceration with foreign body of right elbow, ...
            • S51.021D Laceration with foreign body of right elbow, ...
            • S51.021S Laceration with foreign body of right elbow, ...
          • S51.022 Laceration with foreign body of left elbow
            • S51.022A Laceration with foreign body of left elbow, i...
            • S51.022D Laceration with foreign body of left elbow, s...
            • S51.022S Laceration with foreign body of left elbow, s...
          • S51.029 Laceration with foreign body of unspecified e...
            • S51.029A Laceration with foreign body of unspecified e...
            • S51.029D Laceration with foreign body of unspecified e...
            • S51.029S Laceration with foreign body of unspecified e...
        • S51.03 Puncture wound without foreign body of elbow
          • S51.031 Puncture wound without foreign body of right ...
            • S51.031A Puncture wound without foreign body of right ...
            • S51.031D Puncture wound without foreign body of right ...
            • S51.031S Puncture wound without foreign body of right ...
          • S51.032 Puncture wound without foreign body of left e...
            • S51.032A Puncture wound without foreign body of left e...
            • S51.032D Puncture wound without foreign body of left e...
            • S51.032S Puncture wound without foreign body of left e...
          • S51.039 Puncture wound without foreign body of unspec...
            • S51.039A Puncture wound without foreign body of unspec...
            • S51.039D Puncture wound without foreign body of unspec...
            • S51.039S Puncture wound without foreign body of unspec...
        • S51.04 Puncture wound with foreign body of elbow
          • S51.041 Puncture wound with foreign body of right elb...
            • S51.041A Puncture wound with foreign body of right elb...
            • S51.041D Puncture wound with foreign body of right elb...
            • S51.041S Puncture wound with foreign body of right elb...
          • S51.042 Puncture wound with foreign body of left elbo...
            • S51.042A Puncture wound with foreign body of left elbo...
            • S51.042D Puncture wound with foreign body of left elbo...
            • S51.042S Puncture wound with foreign body of left elbo...
          • S51.049 Puncture wound with foreign body of unspecifi...
            • S51.049A Puncture wound with foreign body of unspecifi...
            • S51.049D Puncture wound with foreign body of unspecifi...
            • S51.049S Puncture wound with foreign body of unspecifi...
        • S51.05 Open bite of elbow
      • S51.8 Open wound of forearm
        • S51.80 Unspecified open wound of forearm
          • S51.801 Unspecified open wound of right forearm
            • S51.801A Unspecified open wound of right forearm, init...
            • S51.801D Unspecified open wound of right forearm, subs...
            • S51.801S Unspecified open wound of right forearm, sequ...
          • S51.802 Unspecified open wound of left forearm
            • S51.802A Unspecified open wound of left forearm, initi...
            • S51.802D Unspecified open wound of left forearm, subse...
            • S51.802S Unspecified open wound of left forearm, seque...
          • S51.809 Unspecified open wound of unspecified forearm...
            • S51.809A Unspecified open wound of unspecified forearm...
            • S51.809D Unspecified open wound of unspecified forearm...
            • S51.809S Unspecified open wound of unspecified forearm...
        • S51.81 Laceration without foreign body of forearm
          • S51.811 Laceration without foreign body of right fore...
            • S51.811A Laceration without foreign body of right fore...
            • S51.811D Laceration without foreign body of right fore...
            • S51.811S Laceration without foreign body of right fore...
          • S51.812 Laceration without foreign body of left forea...
            • S51.812A Laceration without foreign body of left forea...
            • S51.812D Laceration without foreign body of left forea...
            • S51.812S Laceration without foreign body of left forea...
          • S51.819 Laceration without foreign body of unspecifie...
            • S51.819A Laceration without foreign body of unspecifie...
            • S51.819D Laceration without foreign body of unspecifie...
            • S51.819S Laceration without foreign body of unspecifie...
        • S51.82 Laceration with foreign body of forearm
          • S51.821 Laceration with foreign body of right forearm...
            • S51.821A Laceration with foreign body of right forearm...
            • S51.821D Laceration with foreign body of right forearm...
            • S51.821S Laceration with foreign body of right forearm...
          • S51.822 Laceration with foreign body of left forearm
            • S51.822A Laceration with foreign body of left forearm,...
            • S51.822D Laceration with foreign body of left forearm,...
            • S51.822S Laceration with foreign body of left forearm,...
          • S51.829 Laceration with foreign body of unspecified f...
            • S51.829A Laceration with foreign body of unspecified f...
            • S51.829D Laceration with foreign body of unspecified f...
            • S51.829S Laceration with foreign body of unspecified f...
        • S51.83 Puncture wound without foreign body of forear...
          • S51.831 Puncture wound without foreign body of right ...
            • S51.831A Puncture wound without foreign body of right ...
            • S51.831D Puncture wound without foreign body of right ...
            • S51.831S Puncture wound without foreign body of right ...
          • S51.832 Puncture wound without foreign body of left f...
            • S51.832A Puncture wound without foreign body of left f...
            • S51.832D Puncture wound without foreign body of left f...
            • S51.832S Puncture wound without foreign body of left f...
          • S51.839 Puncture wound without foreign body of unspec...
            • S51.839A Puncture wound without foreign body of unspec...
            • S51.839D Puncture wound without foreign body of unspec...
            • S51.839S Puncture wound without foreign body of unspec...
        • S51.84 Puncture wound with foreign body of forearm
          • S51.841 Puncture wound with foreign body of right for...
            • S51.841A Puncture wound with foreign body of right for...
            • S51.841D Puncture wound with foreign body of right for...
            • S51.841S Puncture wound with foreign body of right for...
          • S51.842 Puncture wound with foreign body of left fore...
            • S51.842A Puncture wound with foreign body of left fore...
            • S51.842D Puncture wound with foreign body of left fore...
            • S51.842S Puncture wound with foreign body of left fore...
          • S51.849 Puncture wound with foreign body of unspecifi...
            • S51.849A Puncture wound with foreign body of unspecifi...
            • S51.849D Puncture wound with foreign body of unspecifi...
            • S51.849S Puncture wound with foreign body of unspecifi...
        • S51.85 Open bite of forearm
          • S51.851 Open bite of right forearm
            • S51.851A Open bite of right forearm, initial encounter...
            • S51.851D Open bite of right forearm, subsequent encoun...
            • S51.851S …… sequela
          • S51.852 Open bite of left forearm
          • S51.859 Open bite of unspecified forearm
            • S51.859A Open bite of unspecified forearm, initial enc...
            • S51.859D Open bite of unspecified forearm, subsequent ...
            • S51.859S …… sequela
    S51.-
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (S56) and the excluded code together.
  • injury of muscle, fascia and tendon at or below wrist (
    ICD-10-CM Diagnosis Code S66
    • S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
    • S66.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
    • S66.2 Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level
    • S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
    • S66.4 Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level
    • S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
    • S66.8 Injury of other specified muscles, fascia and tendons at wrist and hand level
    • S66.9 Injury of unspecified muscle, fascia and tendon at wrist and hand level
    S66.-
    )
  • sprain of joints and ligaments of elbow (
    ICD-10-CM Diagnosis Code S53.4

    Sprain of elbow

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • traumatic rupture of radial collateral ligament (S53.2-)
    • traumatic rupture of ulnar collateral ligament (S53.3-)
    S53.4-
    )
The following code(s) above S56 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:
  • 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
  • S50-S59
    2021 ICD-10-CM Range S50-S59

    Injuries to the elbow and forearm

    Type 2 Excludes
    Injuries to the elbow and forearm
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
Code annotations containing back-references to S56:
  • Type 2 Excludes: S46
    , S53
    ICD-10-CM Diagnosis Code S46

    Injury of muscle, fascia and tendon at shoulder and upper arm level

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated open wound (S41.-)
    Type 2 Excludes
    • injury of muscle, fascia and tendon at elbow (S56.-)
    • sprain of joints and ligaments of shoulder girdle (S43.9)
    ICD-10-CM Diagnosis Code S53

    Dislocation and sprain of joints and ligaments of elbow

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated open wound
    Includes
    • avulsion of joint or ligament of elbow
    • laceration of cartilage, joint or ligament of elbow
    • sprain of cartilage, joint or ligament of elbow
    • traumatic hemarthrosis of joint or ligament of elbow
    • traumatic rupture of joint or ligament of elbow
    • traumatic subluxation of joint or ligament of elbow
    • traumatic tear of joint or ligament of elbow
    Type 2 Excludes
    • strain of muscle, fascia and tendon at forearm level (S56.-)
ICD-10-CM Codes Adjacent To S56
S55.991D …… subsequent encounter
S55.991S …… sequela
S55.992 Other specified injury of unspecified blood vessel at forearm level, left arm
S55.992A …… initial encounter
S55.992D …… subsequent encounter
S55.992S …… sequela
S55.999 Other specified injury of unspecified blood vessel at forearm level, unspecified arm
S55.999A …… initial encounter
S55.999D …… subsequent encounter
S55.999S …… sequela
S56 Injury of muscle, fascia and tendon at forearm level
S56.0 Injury of flexor muscle, fascia and tendon of thumb at forearm level
S56.00 Unspecified injury of flexor muscle, fascia and tendon of thumb at forearm level
S56.001 Unspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level
S56.001A …… initial encounter
S56.001D …… subsequent encounter
S56.001S …… sequela
S56.002 Unspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level
S56.002A …… initial encounter
S56.002D …… subsequent encounter
S56.002S …… sequela

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