Unspecified subluxation of unspecified thumb, sequela

This code signifies a long-term effect or complication resulting from a previous, unspecified subluxation (partial dislocation) of an unspecified thumb. It indicates that the original injury has resolved, but residual issues related to that injury persist.

This code is appropriate for documenting a current condition that is a direct consequence of a past, unspecified thumb subluxation. This applies when the specific thumb (left or right) and the exact joint involved in the original subluxation are not documented, and the current encounter addresses the sequelae rather than the acute injury itself.

• Only use this code when the documentation explicitly states "sequela" or "late effect" of a prior thumb subluxation.
• Avoid using this code for acute or current subluxations; those require codes from the initial or subsequent encounter categories.
• Ensure the medical record clearly supports the unspecified nature of both the thumb and the subluxation for this code to be appropriate.