Strain of muscle and tendon of head, sequela

This code signifies a chronic or residual condition resulting from a previous strain to the muscles or tendons of the head. It indicates that the initial injury has resolved, but the patient continues to experience lasting effects such as pain, weakness, or limited range of motion.

Apply this code when documentation clearly indicates a current condition directly attributable to a past head muscle/tendon strain. This is appropriate for follow-up encounters addressing persistent symptoms after the acute phase of the original injury has passed.

• Ensure the medical record explicitly states a "sequela" or "residual effect" of a prior head muscle/tendon strain.
• Always use with an additional code to specify the nature of the sequela (e.g., chronic pain, muscle weakness).
• Do not use for acute or subacute strains; those require codes from the initial encounter or subsequent encounter categories.