ICD-10-CM Codes
M00-M99
M86-M90
M86-
2023 ICD-10-CM Diagnosis Code M86

2023 ICD-10-CM Diagnosis Code M86

Osteomyelitis

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

M86 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM M86 became effective on October 1, 2022.
This is the American ICD-10-CM version of M86 - other international versions of ICD-10 M86 may differ.

Use Additional

Use Additional Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

code (B95-B97
ICD-10-CM Range B95-B97
Bacterial and viral infectious agents
Note
- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
- B95 Streptococcus, Staphylococcus, and Enter...
- B96 Other bacterial agents as the cause of d...
- B97 Viral agents as the cause of diseases cl...
) to identify infectious agent

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M86. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

osteomyelitis due to:
echinococcus (
ICD-10-CM Diagnosis Code B67.2
Echinococcus granulosus infection of bone
B67.2
)
gonococcus (
ICD-10-CM Diagnosis Code A54.43
Gonococcal osteomyelitis
Type 2 Excludes
- gonococcal infection of spine (A54.41)
A54.43
)
salmonella (
ICD-10-CM Diagnosis Code A02.24
Salmonella osteomyelitis
A02.24
)

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (M86) and the excluded code together.

ostemyelitis of:
orbit (
ICD-10-CM Diagnosis Code H05.0
Acute inflammation of orbit
H05.0-
)
petrous bone (
ICD-10-CM Diagnosis Code H70.2
Petrositis
Applicable To
- Inflammation of petrous bone
H70.2-
)
vertebra (
ICD-10-CM Diagnosis Code M46.2
Osteomyelitis of vertebra
M46.2-
)

The following code(s) above M86 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to M86:

M00-M99
2023 ICD-10-CM Range M00-M99
Diseases of the musculoskeletal system and connective tissue
Note
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Type 2 Excludes
- 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)
Diseases of the musculoskeletal system and connective tissue
M86-M90
2023 ICD-10-CM Range M86-M90
Other osteopathies
Type 1 Excludes
- postprocedural osteopathies (M96.-)
Other osteopathies

Clinical Information

An acute or chronic inflammation of the bone and its structures due to infection with pyogenic bacteria.
Inflammation of the bone caused by an infection, which may spread to the bone marrow and tissues near the bone. Osteomyelitis can cause severe pain in the infected bone. If it is not treated, it can kill bone tissue.
Inflammation of the bone marrow and adjacent bone caused by a pyogenic organism; it may remain localized or may spread through the bone to involve the marrow, cortex, cancellous tissue, and periosteum.

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to M86:

Code First: M89.7

ICD-10-CM Diagnosis Code M89.7
Major osseous defect
Code First
- underlying disease, if known, such as:
- aseptic necrosis of bone (M87.-)
- malignant neoplasm of bone (C40.-)
- osteolysis (M89.5)
- osteomyelitis (M86.-)
- osteonecrosis (M87.-)
- osteoporosis (M80.-, M81.-)
- periprosthetic osteolysis (T84.05-)

ICD-10-CM Codes Adjacent To M86

M85.861 Other specified disorders of bone density and structure, right lower leg

M85.862 Other specified disorders of bone density and structure, left lower leg

M85.869 Other specified disorders of bone density and structure, unspecified lower leg

M85.87 Other specified disorders of bone density and structure, ankle and foot

M85.871 Other specified disorders of bone density and structure, right ankle and foot

M85.872 Other specified disorders of bone density and structure, left ankle and foot

M85.879 Other specified disorders of bone density and structure, unspecified ankle and foot

M85.88 …… other site

M85.89 …… multiple sites

M85.9 Disorder of bone density and structure, unspecified

M86 Osteomyelitis

M86.0 Acute hematogenous osteomyelitis

M86.00 …… unspecified site

M86.01 Acute hematogenous osteomyelitis, shoulder

M86.011 Acute hematogenous osteomyelitis, right shoulder

M86.012 Acute hematogenous osteomyelitis, left shoulder

M86.019 Acute hematogenous osteomyelitis, unspecified shoulder

M86.02 Acute hematogenous osteomyelitis, humerus

M86.021 Acute hematogenous osteomyelitis, right humerus

M86.022 Acute hematogenous osteomyelitis, left humerus

M86.029 Acute hematogenous osteomyelitis, unspecified humerus

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code M86

Osteomyelitis

Bacterial and viral infectious agents

Echinococcus granulosus infection of bone

Gonococcal osteomyelitis

Salmonella osteomyelitis

Acute inflammation of orbit

Petrositis

Osteomyelitis of vertebra

Diseases of the musculoskeletal system and connective tissue

Other osteopathies

Major osseous defect