Strain of intrinsic musc/fasc/tend r thm at wrs/hnd lv, subs

This code signifies a non-traumatic injury to the intrinsic muscles, fascia, or tendons within the right thumb, specifically at the wrist and hand level. It indicates an overstretching or tearing of these soft tissues, resulting in pain, swelling, and impaired function of the thumb. This diagnosis is for a patient who is receiving follow-up care for this specific injury.

Use this code for a patient presenting for a follow-up visit, such as physical therapy, re-evaluation, or medication refill, after an initial diagnosis and treatment of a strain to the intrinsic muscles, fascia, or tendons of the right thumb. This applies when the injury occurred at the wrist or hand level, excluding the metacarpophalangeal (MCP) or interphalangeal (IP) joints.

• Ensure the documentation clearly specifies the right thumb and the wrist/hand level for the strain.
• Verify that the encounter is for subsequent care, not the initial treatment of the injury.
• Distinguish this from sprains (ligamentous injury) or strains of extrinsic thumb muscles.