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  6. 2024 ICD-10-CM Code M86
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code M86

Osteomyelitis

ICD-10-CM Code:
M86
ICD-10 Code for:
Osteomyelitis
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Other osteopathies
      (M86-M90)
      • Osteomyelitis
        (M86)

M86 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of osteomyelitis. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Osteomyelitis

Non-specific codes like M86 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for osteomyelitis:

  • M86.0 for Acute hematogenous osteomyelitis - NON-BILLABLE CODE

  • Use M86.00 for Acute hematogenous osteomyelitis, unspecified site - BILLABLE CODE

  • M86.01 for Acute hematogenous osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.02 for Acute hematogenous osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.03 for Acute hematogenous osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.04 for Acute hematogenous osteomyelitis, hand - NON-BILLABLE CODE

  • M86.05 for Acute hematogenous osteomyelitis, femur - NON-BILLABLE CODE

  • M86.06 for Acute hematogenous osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.07 for Acute hematogenous osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.08 for Acute hematogenous osteomyelitis, other sites - BILLABLE CODE

  • Use M86.09 for Acute hematogenous osteomyelitis, multiple sites - BILLABLE CODE

  • M86.1 for Other acute osteomyelitis - NON-BILLABLE CODE

  • Use M86.10 for Other acute osteomyelitis, unspecified site - BILLABLE CODE

  • M86.11 for Other acute osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.12 for Other acute osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.13 for Other acute osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.14 for Other acute osteomyelitis, hand - NON-BILLABLE CODE

  • M86.15 for Other acute osteomyelitis, femur - NON-BILLABLE CODE

  • M86.16 for Other acute osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.17 for Other acute osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.18 for Other acute osteomyelitis, other site - BILLABLE CODE

  • Use M86.19 for Other acute osteomyelitis, multiple sites - BILLABLE CODE

  • M86.2 for Subacute osteomyelitis - NON-BILLABLE CODE

  • Use M86.20 for Subacute osteomyelitis, unspecified site - BILLABLE CODE

  • M86.21 for Subacute osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.22 for Subacute osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.23 for Subacute osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.24 for Subacute osteomyelitis, hand - NON-BILLABLE CODE

  • M86.25 for Subacute osteomyelitis, femur - NON-BILLABLE CODE

  • M86.26 for Subacute osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.27 for Subacute osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.28 for Subacute osteomyelitis, other site - BILLABLE CODE

  • Use M86.29 for Subacute osteomyelitis, multiple sites - BILLABLE CODE

  • M86.3 for Chronic multifocal osteomyelitis - NON-BILLABLE CODE

  • Use M86.30 for Chronic multifocal osteomyelitis, unspecified site - BILLABLE CODE

  • M86.31 for Chronic multifocal osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.32 for Chronic multifocal osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.33 for Chronic multifocal osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.34 for Chronic multifocal osteomyelitis, hand - NON-BILLABLE CODE

  • M86.35 for Chronic multifocal osteomyelitis, femur - NON-BILLABLE CODE

  • M86.36 for Chronic multifocal osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.37 for Chronic multifocal osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.38 for Chronic multifocal osteomyelitis, other site - BILLABLE CODE

  • Use M86.39 for Chronic multifocal osteomyelitis, multiple sites - BILLABLE CODE

  • M86.4 for Chronic osteomyelitis with draining sinus - NON-BILLABLE CODE

  • Use M86.40 for Chronic osteomyelitis with draining sinus, unspecified site - BILLABLE CODE

  • M86.41 for Chronic osteomyelitis with draining sinus, shoulder - NON-BILLABLE CODE

  • M86.42 for Chronic osteomyelitis with draining sinus, humerus - NON-BILLABLE CODE

  • M86.43 for Chronic osteomyelitis with draining sinus, radius and ulna - NON-BILLABLE CODE

  • M86.44 for Chronic osteomyelitis with draining sinus, hand - NON-BILLABLE CODE

  • M86.45 for Chronic osteomyelitis with draining sinus, femur - NON-BILLABLE CODE

  • M86.46 for Chronic osteomyelitis with draining sinus, tibia and fibula - NON-BILLABLE CODE

  • M86.47 for Chronic osteomyelitis with draining sinus, ankle and foot - NON-BILLABLE CODE

  • Use M86.48 for Chronic osteomyelitis with draining sinus, other site - BILLABLE CODE

  • Use M86.49 for Chronic osteomyelitis with draining sinus, multiple sites - BILLABLE CODE

  • M86.5 for Other chronic hematogenous osteomyelitis - NON-BILLABLE CODE

  • Use M86.50 for Other chronic hematogenous osteomyelitis, unspecified site - BILLABLE CODE

  • M86.51 for Other chronic hematogenous osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.52 for Other chronic hematogenous osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.53 for Other chronic hematogenous osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.54 for Other chronic hematogenous osteomyelitis, hand - NON-BILLABLE CODE

  • M86.55 for Other chronic hematogenous osteomyelitis, femur - NON-BILLABLE CODE

  • M86.56 for Other chronic hematogenous osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.57 for Other chronic hematogenous osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.58 for Other chronic hematogenous osteomyelitis, other site - BILLABLE CODE

  • Use M86.59 for Other chronic hematogenous osteomyelitis, multiple sites - BILLABLE CODE

  • M86.6 for Other chronic osteomyelitis - NON-BILLABLE CODE

  • Use M86.60 for Other chronic osteomyelitis, unspecified site - BILLABLE CODE

  • M86.61 for Other chronic osteomyelitis, shoulder - NON-BILLABLE CODE

  • M86.62 for Other chronic osteomyelitis, humerus - NON-BILLABLE CODE

  • M86.63 for Other chronic osteomyelitis, radius and ulna - NON-BILLABLE CODE

  • M86.64 for Other chronic osteomyelitis, hand - NON-BILLABLE CODE

  • M86.65 for Other chronic osteomyelitis, thigh - NON-BILLABLE CODE

  • M86.66 for Other chronic osteomyelitis, tibia and fibula - NON-BILLABLE CODE

  • M86.67 for Other chronic osteomyelitis, ankle and foot - NON-BILLABLE CODE

  • Use M86.68 for Other chronic osteomyelitis, other site - BILLABLE CODE

  • Use M86.69 for Other chronic osteomyelitis, multiple sites - BILLABLE CODE

  • M86.8 for Other osteomyelitis - NON-BILLABLE CODE

  • M86.8X for Other osteomyelitis - NON-BILLABLE CODE

  • Use M86.9 for Osteomyelitis, unspecified - BILLABLE CODE

Clinical Information

  • Osteomyelitis

    inflammation of the bone as a result of infection. it may be caused by a variety of infectious agents, especially pyogenic (pus - producing) bacteria.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Patient Education


Bone Infections

Like other parts of the body, bones can get infected. The infections are usually bacterial, but can also be fungal. They may spread to the bone from nearby skin or muscles, or from another part of the body through the bloodstream. People who are at risk for bone infections include those with diabetes, poor circulation, or recent injury to the bone. You may also be at risk if you are having hemodialysis.

Symptoms of bone infections include:

  • Pain in the infected area
  • Chills and fever
  • Swelling, warmth, and redness

A blood test or imaging test such as an x-ray can tell if you have a bone infection. Treatment includes antibiotics and often surgery.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.