M86.42

Non-Billable

ChapterM00–M99

Ranksubcategory

Official Description

Chronic osteomyelitis with draining sinus, humerus

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 M86 Notes

Clinical Hierarchy

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

M86-M90Other osteopathies (M86-M90)

M86Osteomyelitis

M86.4Chronic osteomyelitis with draining sinus

M86.42Chronic osteomyelitis with draining sinus, humerus

M86.421Chronic osteomyelitis with draining sinus, right humerus

M86.422Chronic osteomyelitis with draining sinus, left humerus

M86.429Chronic osteomyelitis with draining sinus, unspecified humerus

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M86.42:

categoryM86

Osteomyelitis

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 M86.42. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis)1 unique routes

chronic (or old)

with draining sinus

humerus→M86.42

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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