Hemarthrosis, unspecified foot

This code signifies the presence of blood within a joint space of an unspecified foot. It indicates an intra-articular hemorrhage, which can result from trauma, bleeding disorders, or other underlying conditions affecting the foot's joints.

Use this code when documentation clearly states hemarthrosis of the foot, but the specific joint (e.g., ankle, midfoot, forefoot) is not identified. This code is appropriate when the physician's notes confirm the presence of blood in a foot joint without further anatomical specificity.

• Avoid using this code if a more specific anatomical site (e.g., ankle, metatarsal joint) is documented; instead, use the appropriate M25.07- subcategory.
• Always review documentation for the underlying cause of the hemarthrosis, as an external cause code (e.g., S90-S99 for foot injuries) may also be required.
• Ensure the documentation explicitly states "hemarthrosis" or "blood in joint" rather than just effusion, as other types of effusions are coded differently.