Osteitis deformans [Paget's disease of bone] (M88) ICD-10-CM
The M88 code range covers osteitis deformans [paget's disease of bone] with 35 ICD-10-CM diagnosis codes. 26 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- osteitis deformans in neoplastic disease M90.6
Codes in the M88 Range 35 codes · 26 billable
- M88 Osteitis deformans [Paget's disease of bone]Non-billable
- M88.0 Osteitis deformans of skull
- M88.1 Osteitis deformans of vertebrae
- M88.8 Osteitis deformans of other bonesNon-billable
- M88.81 Osteitis deformans of shoulderNon-billable
- M88.811 Osteitis deformans of right shoulder
- M88.812 Osteitis deformans of left shoulder
- M88.819 Osteitis deformans of unspecified shoulder
- M88.82 Osteitis deformans of upper armNon-billable
- M88.821 Osteitis deformans of right upper arm
- M88.822 Osteitis deformans of left upper arm
- M88.829 Osteitis deformans of unspecified upper arm
- M88.83 Osteitis deformans of forearmNon-billable
- M88.831 Osteitis deformans of right forearm
- M88.832 Osteitis deformans of left forearm
- M88.839 Osteitis deformans of unspecified forearm
- M88.84 Osteitis deformans of handNon-billable
- M88.841 Osteitis deformans of right hand
- M88.842 Osteitis deformans of left hand
- M88.849 Osteitis deformans of unspecified hand
- M88.85 Osteitis deformans of thighNon-billable
- M88.851 Osteitis deformans of right thigh
- M88.852 Osteitis deformans of left thigh
- M88.859 Osteitis deformans of unspecified thigh
- M88.86 Osteitis deformans of lower legNon-billable
- M88.861 Osteitis deformans of right lower leg
- M88.862 Osteitis deformans of left lower leg
- M88.869 Osteitis deformans of unspecified lower leg
- M88.87 Osteitis deformans of ankle and footNon-billable
- M88.871 Osteitis deformans of right ankle and foot
- M88.872 Osteitis deformans of left ankle and foot
- M88.879 Osteitis deformans of unspecified ankle and foot
- M88.88 Osteitis deformans of other bones
- M88.89 Osteitis deformans of multiple sites
- M88.9 Osteitis deformans of unspecified bone
About the M88 Code Range
Osteitis deformans, also called Paget's disease of bone, appears here among other bone disorders.
The subdivisions separate the skull M88.0, vertebrae M88.1, and other bones M88.8. Under other bones, codes distinguish the shoulder, arm, hand, leg, ankle and foot, as well as multiple sites. Codes for those specific body areas further distinguish right, left and unspecified sides. M88.9 identifies an unspecified bone.
Questions About This Page
How many billable codes are in the M88 range?
Of the 35 codes in this range, 26 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the M88 range classify?
The range classifies osteitis deformans [paget's disease of bone]. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
