M65.87
Non-billableOther synovitis and tenosynovitis, ankle and foot
M65.87 is the ICD-10-CM code for Other synovitis and tenosynovitis, ankle and foot. It is a non-billable category code — use a more specific child code such as M65.871 for billing.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHWhat are joints? Your joints are places where two or more bones come together. Your shoulders, elbows, hips, knees, and knuckles are all joints. Your spine has joints, too. But joints are more than bones. They include the soft tissues around them, such as cartilage, tendons and ligaments. Cartilage is the hard slippery flexible tissue that covers the ends of your bones at a joint. Tendons are tough, flexible bands…
Read more about Joint Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labeling- HydrocortisoneCorticosteroid [EPC]›
- DexamethasoneCorticosteroid [EPC]›
- Dexamethasone Sodium Phosphate, Bupivacaine Hydrochloride, Povidine Iodine›
- Dexamethasone Sodium Phosphate, Lidocaine Hydrochloride, Povidine Iodine›
- Dexamethasone Sodium Phosphate, Ropivacaine Hydrochloride, Povidine Iodine›
- Prednisolone OralCorticosteroid [EPC]›
- Prednisone D/pCorticosteroid [EPC]›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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