Other acquired deformities of right foot

This code signifies an acquired structural abnormality of the right foot that is not congenital or due to a specific injury or disease classified elsewhere. It encompasses a range of non-traumatic, non-congenital changes in the foot's shape or alignment, such as pes planus (flatfoot) or pes cavus (high arch) that develop over time, or other unspecified deformities.

Use this code when documentation specifies an acquired deformity of the right foot without a more specific ICD-10-CM code available. This applies to conditions like adult-acquired flatfoot, or other structural changes that have developed rather than being present at birth or resulting from an acute injury. Physician notes should clearly indicate the laterality and the acquired nature of the deformity.

• Ensure the documentation explicitly states "acquired" and specifies the "right foot."
• Always look for more specific codes within the M20-M21 range before defaulting to this unspecified code.
• Distinguish from congenital deformities (Q66.-) and deformities due to specific diseases (e.g., rheumatoid arthritis).