M88.8

Non-Billable

ChapterM00–M99

Ranksubcategory

Official Description

Osteitis deformans of other bones

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

General instructions are available for the parent sections:

View CH13 Notes View M86-M90 Notes View M88 Notes

Clinical Hierarchy

CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)

M86-M90Other osteopathies (M86-M90)

M88Osteitis deformans [Paget's disease of bone]

M88.8Osteitis deformans of other bones

M88.81Osteitis deformans of shoulder

M88.82Osteitis deformans of upper arm

M88.83Osteitis deformans of forearm

M88.84Osteitis deformans of hand

M88.85Osteitis deformans of thigh

M88.86Osteitis deformans of lower leg

M88.87Osteitis deformans of ankle and foot

M88.88Osteitis deformans of other bones

M88.89Osteitis deformans of multiple sites

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M88.8:

categoryM88

Osteitis deformans [Paget's disease of bone]

View context instructions

blockM86-M90

Other osteopathies (M86-M90)

View context instructions

chapterCH13

Diseases of the musculoskeletal system and connective tissue (M00-M99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to M88.8. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

22 raw paths

Curvature1 unique routes

spine (acquired) (angular) (idiopathic) (incorrect) (postural)

due to or associated with

osteitis

deformans→M88.8

Paget's disease21 unique routes

bone(21 variants)

carpus→M88.8

clavicle→M88.8

femur→M88.8

fibula→M88.8