2018 ICD-10-CM Diagnosis Code S66

Injury of muscle, fascia and tendon at wrist and hand level

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 S61
    • S61.0 Open wound of thumb without damage to nail
    • S61.1 Open wound of thumb with damage to nail
    • S61.2 Open wound of other finger without damage to nail
    • S61.3 Open wound of other finger with damage to nail
    • S61.4 Open wound of hand
    • S61.5 Open wound of wrist
    S61.-
    )
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 (S66) and the excluded code together.
  • sprain of joints and ligaments of wrist and hand (
    ICD-10-CM Diagnosis Code S63
    • S63.0 Subluxation and dislocation of wrist and hand joints
    • S63.1 Subluxation and dislocation of thumb
    • S63.2 Subluxation and dislocation of other finger(s)
    • S63.3 Traumatic rupture of ligament of wrist
    • S63.4 Traumatic rupture of ligament of finger at metacarpophalangeal and interphalangeal joint(s)
    • S63.5 Other and unspecified sprain of wrist
    • S63.6 Other and unspecified sprain of finger(s)
    • S63.8 Sprain of other part of wrist and hand
    • S63.9 Sprain of unspecified part of wrist and hand
    S63.-
    )
The following code(s) above S66 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 S66:
  • S00-T88
    2018 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
  • S60-S69
    2018 ICD-10-CM Range S60-S69

    Injuries to the wrist, hand and fingers

    Type 2 Excludes
    Injuries to the wrist, hand and fingers
Code History
Code annotations containing back-references to S66:
ICD-10-CM Codes Adjacent To S66
S65.991D …… subsequent encounter
S65.991S …… sequela
S65.992 Other specified injury of unspecified blood vessel at wrist and hand of left arm
S65.992A …… initial encounter
S65.992D …… subsequent encounter
S65.992S …… sequela
S65.999 Other specified injury of unspecified blood vessel at wrist and hand of unspecified arm
S65.999A …… initial encounter
S65.999D …… subsequent encounter
S65.999S …… sequela
S66 Injury of muscle, fascia and tendon at wrist and hand level
S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
S66.00 Unspecified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level
S66.001 Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
S66.001A …… initial encounter
S66.001D …… subsequent encounter
S66.001S …… sequela
S66.002 Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
S66.002A …… initial encounter
S66.002D …… subsequent encounter
S66.002S …… sequela

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