M05.50
BillableRheumatoid polyneuropathy with rheumatoid arthritis of unspecified site
M05.50 is the ICD-10-CM code for Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified site. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHWhat is rheumatoid arthritis? Rheumatoid arthritis (RA) is a form of arthritis that causes pain, swelling, and stiffness in your joints. RA is an autoimmune disease . Although it is most common in the wrist and fingers, this disease can cause your immune system to attack any joint tissue. The inflammation (swelling) that comes with RA can also affect other body parts. Inflammation could cause medical issues in your…
Read more about Rheumatoid Arthritis at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labeling- HydrocortisoneCorticosteroid [EPC]›
- AdalimumabTumor Necrosis Factor Blocker [EPC]›
- MethylprednisoloneCorticosteroid [EPC]›
- DexamethasoneCorticosteroid [EPC]›
- CyclosporineCalcineurin Inhibitor Immunosuppressant [EPC]›
- TocilizumabInterleukin-6 Receptor Antagonist [EPC]›
- MethotrexateFolate Analog Metabolic Inhibitor [EPC]›
- NaproxenNonsteroidal Anti-inflammatory Drug [EPC]›
- AzathioprinePurine Antimetabolite [EPC]›
- Hydroxychloroquine›
- IndomethacinNonsteroidal Anti-inflammatory Drug [EPC]›
- MeloxicamNonsteroidal Anti-inflammatory Drug [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
- What is ICD-10 code M05.50?
- M05.50 is the ICD-10-CM code for "Rheumatoid polyneuropathy with rheumatoid arthritis of unspecified site". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M05.50 a billable code?
- Yes — M05.50 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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