M88
Non-billableOsteitis deformans [Paget's disease of bone]
M88 is the ICD-10-CM code for Osteitis deformans [Paget's disease of bone]. It is a non-billable category code — use a more specific child code such as M88.0 for billing.
- Status
- Header (non-billable)
- Chapter
- M00-M99
- Subcodes
- 4
- Edition
- FY2026
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHWhat is Paget's disease of bone? Paget's disease of bone is a chronic bone disorder. Normally, there is a process in which your bones break down and then regrow. In Paget's disease, this process is abnormal. There is excessive breakdown and regrowth of bone. Because the bones regrow too quickly, they are bigger and softer than normal. They may be misshapen and easily fractured (broken). Paget's usually affects just…
Read more about Paget's Disease of Bone at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •osteitis deformans in neoplastic disease (M90.6)
Frequently asked questions
- What is ICD-10 code M88?
- M88 is the ICD-10-CM code for "Osteitis deformans [Paget's disease of bone]". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M88 a billable code?
- No — M88 is a non-billable header code. Use a more specific child code (such as M88.0) for billing.
- What is excluded from M88?
- Excludes1 (not coded here): osteitis deformans in neoplastic disease (M90.6).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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