Is ICD-10-CM code M88 billable?

No, M88 (Osteitis deformans [Paget's disease of bone]) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code M88 belong to?

M88 belongs to Chapter 13 of the ICD-10-CM tabular list: M00–M99 (Diseases of the Musculoskeletal System and Connective Tissue).

M88

Non-Billable

ChapterM00–M99

Rankcategory

Description

Osteitis deformans [Paget's disease of bone]

About ICD-10-CM code M88

Under M00-M99 Diseases of the Musculoskeletal System and Connective Tissue, within Other osteopathies (M86-M90), ICD-10-CM code M88 describes Osteitis deformans [Paget's disease of bone]. This code cannot be billed directly because more specific child codes exist beneath it.

Use a more specific code (3 billable, 1 non-billable)

M88.0Osteitis deformans of skull M88.1Osteitis deformans of vertebrae M88.8Osteitis deformans of other boneshas subcodes M88.9Osteitis deformans of unspecified bone

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

arthropathic psoriasis (L40.5-)
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

M86-M90 Parent Instructions

Excludes1(Not coded here. Use a different code.)

postprocedural osteopathies (M96.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

osteitis deformans in neoplastic disease (M90.6)

Clinical Hierarchy

BillableHas subcodes

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

M86-M90Other osteopathies (M86-M90)

M88Osteitis deformans [Paget's disease of bone]Not billable

M88.0Osteitis deformans of skullBillable

M88.1Osteitis deformans of vertebraeBillable

M88.8Osteitis deformans of other bonesSubcodes

M88.9Osteitis deformans of unspecified boneBillable

Applicable Ancestor Context

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

blockM86-M90

Other osteopathies (M86-M90)

View context instructions

chapterCH13

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

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

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