Subluxation of C7/T1 cervical vertebrae, sequela

This code indicates a long-term or late-effect condition resulting from a previous subluxation (partial dislocation) of the C7 and T1 vertebrae in the cervical spine. It signifies that the patient is experiencing residual symptoms or complications directly attributable to that past injury, rather than an acute or initial episode.

Use this code when documenting a patient presenting with chronic pain, neurological deficits, or other persistent issues that are a direct consequence of a previously treated or resolved C7/T1 subluxation. Documentation should clearly link the current symptoms to the past injury and indicate that the acute phase of the subluxation has passed.

• Always sequence this code after the code(s) for the specific sequela (e.g., chronic pain, radiculopathy) being treated.
• Ensure documentation explicitly states "sequela," "late effect," or similar terminology to support the use of the "S" seventh character.
• Do not use for acute or initial subluxation injuries; refer to codes without the "S" seventh character for those scenarios.