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M86.36

Chronic multifocal osteomyelitis, tibia and fibula

Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 18 never code together
M86code
Excludes1
  • osteomyelitis due to:
  • echinococcus (B67.2)B67.2
  • gonococcus (A54.43)A54.43
  • salmonella (A02.24)A02.24
Excludes2
M00-M99chapter
Excludes2
  • arthropathic psoriasis (L40.5-)L40.5-
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • compartment syndrome (traumatic) (T79.A-)T79.A-
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 3
M86code
Use additional code
  • code (B95-B97) to identify infectious agentB95-B97
  • code to identify major osseous defect, if applicable (M89.7-)M89.7-
M00-M99chapter
Notes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Index entries leading here 1
  • Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) M86.9
Alongside this code 9 same parent — M86.3
M86.30 Chronic multifocal osteomyelitis, unspecified site M86.31 Chronic multifocal osteomyelitis, shoulder category M86.32 Chronic multifocal osteomyelitis, humerus category M86.33 Chronic multifocal osteomyelitis, radius and ulna category M86.34 Chronic multifocal osteomyelitis, hand category M86.35 Chronic multifocal osteomyelitis, femur category M86.37 Chronic multifocal osteomyelitis, ankle and foot category M86.38 Chronic multifocal osteomyelitis, other site M86.39 Chronic multifocal osteomyelitis, multiple sites
Subordinate codes 3
M86.361 Chronic multifocal osteomyelitis, right tibia and fibula M86.362 Chronic multifocal osteomyelitis, left tibia and fibula M86.369 Chronic multifocal osteomyelitis, unsp tibia and fibula
Medications 1
1 Chemical and Drug Induced Liver Injury, Chronic drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
no
Code set
FY2026
Parent
M86.3
Block
M80-M94
Siblings
9
Subordinate
3

Present FY2024–FY2027.