S66.409A Guidelines & Instructional Notes: Unsp inj intrinsic musc/fasc/tend thmb at wrs/hnd lv, init

Instruction Source: S66.409A

Unsp inj intrinsic musc/fasc/tend thmb at wrs/hnd lv, init

Instruction Source: S66.409

Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level

Instruction Source: S66.40

Unspecified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

Instruction Source: S66.4

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

Instruction Source: S66

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

Excludes 2 (Not Included Here)

Instruction Source: S60-S69

Injuries to the wrist, hand and fingers (S60-S69)

Instruction Source: 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