M25.16
Non-billableFistula, knee
M25.16 is the ICD-10-CM code for Fistula, knee. It is a non-billable category code — use a more specific child code such as M25.161 for billing.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHA fistula is an abnormal connection between two parts inside of the body. Fistulas may develop between different organs, such as between the esophagus and the windpipe or the bowel and the vagina. They can also develop between two blood vessels, such as between an artery and a vein or between two arteries. Some people are born with a fistula. Other common causes of fistulas include: Complications from surgery Injury…
Read more about Fistulas at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labeling- DexamethasoneCorticosteroid [EPC]›
- Diclofenac Sodium and Menthol, Methyl Salicylate›
- DiflunisalNonsteroidal Anti-inflammatory Drug [EPC]›
- Arnica, Chamomilla, Hypericum, Ignatia, Symphytum›
- Arnica Montana, Cinnamomum, Dulcamara, Funiculus Umbilicalis Suis, Nadidum, Natrum Oxalaceticum, Pantothenic Acid, Placenta Totalis Suis, Sanguinaria Canadensis, Sulphur, Piper Nigrum, Alpha-lipoicum Acidum, Cartilago Suis, Rhus Tox, Silicea, Symphytum Officinale, Thuja Occidentalis, ApiolumNon-Standardized Food Allergenic Extract [EPC]›
- Bryonia Alba Root, Colchicum Autumnale Bulb, Kalmia Latifolia Leaf, Ledum Palustre Twig, Lycopodium Clavatum Spore, Rhododendron Aureum Leaf, Toxicodendron Pubescens Leaf›
- Dexamethasone Sodium Phosphate, Bupivacaine Hydrochloride, Povidine Iodine›
- Dexamethasone Sodium Phosphate, Ropivacaine Hydrochloride, Povidine Iodine›
- Leflunomide and Diclofenac Sodium Gel›
- Lidocaine 4.5%, Diclofenac 1%Amide Local Anesthetic [EPC]›
- Lidothol Es PatchAmide Local Anesthetic [EPC]›
- Lidothol Gel›
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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