Inj extn/abdr musc/fasc/tend of r thm at forarm lv, subs

This code signifies a subsequent encounter for an injury to the extensor or abductor muscles, fascia, or tendons of the right thumb, specifically located at the forearm level. This includes various types of damage beyond a simple strain, such as tears, lacerations, or ruptures affecting these specific structures.

Use this code when a patient is receiving follow-up care for a previously diagnosed injury to the extensor or abductor muscles, fascia, or tendons of the right thumb at the forearm level. This applies to encounters for routine healing, cast changes, physical therapy, or medication management after the initial treatment phase.

• Ensure the documentation clearly specifies the right thumb and the forearm level of the injury.
• Verify that the encounter is for subsequent care, not the initial treatment or sequelae.
• Distinguish from sprains (S63.6-) or open wounds (S61.2-) which have different coding pathways.