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ICD-10-CM 2027 diagnosis code

M88.8Osteitis deformans of other bones

Not billable — use a more specific code

M88.8 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About M88.8

M88.8 is the ICD-10-CM diagnosis code for Osteitis deformans of other bones. It belongs to category M88 (Osteitis deformans [Paget's disease of bone]), block M86-M90 (other osteopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.

Within M88, choose M88.8 (other bones) only when documentation doesn't support a more specific option: skull (M88.0), vertebrae (M88.1) and unspecified bone (M88.9).

To report this condition, pick the subcode that matches the documentation: M88.81 (shoulder), M88.82 (arm), M88.83 (forearm), M88.84 (hand), M88.85 (thigh), M88.86 (leg), M88.87 (foot), M88.88 (bones) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under M88.8

Notes that apply from higher levels

Instructions written at a parent level also apply to M88.8.

› From M88 Osteitis deformans [Paget's disease of bone]
Excludes1
  • osteitis deformans in neoplastic disease (M90.6)

Broader instructions also apply from M86-M90 Other osteopathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about M88.8

Is M88.8 billable?

No. M88.8 is a header code. Report one of its more specific subcodes instead.