2021 ICD-10-CM Diagnosis Code M86.18

Other acute osteomyelitis, other site

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M86.18 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M86.18 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M86.18 - other international versions of ICD-10 M86.18 may differ.
The following code(s) above M86.18 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 M86.18:
  • M00-M99
    2021 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
    2021 ICD-10-CM Range M86-M90

    Other osteopathies

    Type 1 Excludes
    • postprocedural osteopathies (M96.-)
    Other osteopathies
  • M86
    ICD-10-CM Diagnosis Code M86

    Osteomyelitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    Use Additional
    • code (B95-B97) to identify infectious agent
    Osteomyelitis
Approximate Synonyms
  • Acute osteomyelitis of bilateral pelvis
  • Acute osteomyelitis of bilateral pelvises
  • Acute osteomyelitis of bilateral temporal bones
  • Acute osteomyelitis of bilateral zygomatic bones
  • Acute osteomyelitis of cranium
  • Acute osteomyelitis of facial bone
  • Acute osteomyelitis of frontal bone
  • Acute osteomyelitis of left pelvis
  • Acute osteomyelitis of left temporal bone
  • Acute osteomyelitis of left zygomatic bone
  • Acute osteomyelitis of nasal orbit complex
  • Acute osteomyelitis of right pelvis
  • Acute osteomyelitis of right temporal bone
  • Acute osteomyelitis of right zygomatic bone
  • Acute osteomyelitis of sphenoid bone
  • Acute osteomyelitis of temporal bone
  • Acute osteomyelitis of zygomatic bone
  • Osteomyelitis cranium, acute
  • Osteomyelitis facial bone, acute
  • Osteomyelitis frontal bone, acute
  • Osteomyelitis nasal orbit, complex, acute
  • Osteomyelitis sphenoid bone, acute
  • Osteomyelitis temporal bone, acute
  • Osteomyelitis zygomatic bone, acute
ICD-10-CM M86.18 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 456 Spinal fusion except cervical with spinal curvature or malignancy or infection or extensive fusions with mcc
  • 457 Spinal fusion except cervical with spinal curvature or malignancy or infection or extensive fusions with cc
  • 458 Spinal fusion except cervical with spinal curvature or malignancy or infection or extensive fusions without cc/mcc
  • 539 Osteomyelitis with mcc
  • 540 Osteomyelitis with cc
  • 541 Osteomyelitis without cc/mcc

Convert M86.18 to ICD-9-CM

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

Diagnosis Index entries containing back-references to M86.18:
  • Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) M86.9
    ICD-10-CM Diagnosis Code M86.9

    Osteomyelitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Infection of bone NOS
    • Periostitis without osteomyelitis
    • acute M86.10
      ICD-10-CM Diagnosis Code M86.10

      Other acute osteomyelitis, unspecified site

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • ilium M86.18
      • ischium M86.18
      • neck M86.18
      • rib M86.18
      • skull M86.18

ICD-10-CM Codes Adjacent To M86.18
M86.152 Other acute osteomyelitis, left femur
M86.159 Other acute osteomyelitis, unspecified femur
M86.16 Other acute osteomyelitis, tibia and fibula
M86.161 Other acute osteomyelitis, right tibia and fibula
M86.162 Other acute osteomyelitis, left tibia and fibula
M86.169 Other acute osteomyelitis, unspecified tibia and fibula
M86.17 Other acute osteomyelitis, ankle and foot
M86.171 Other acute osteomyelitis, right ankle and foot
M86.172 Other acute osteomyelitis, left ankle and foot
M86.179 Other acute osteomyelitis, unspecified ankle and foot
M86.18 …… other site
M86.19 …… multiple sites
M86.2 Subacute osteomyelitis
M86.20 …… unspecified site
M86.21 Subacute osteomyelitis, shoulder
M86.211 Subacute osteomyelitis, right shoulder
M86.212 Subacute osteomyelitis, left shoulder
M86.219 Subacute osteomyelitis, unspecified shoulder
M86.22 Subacute osteomyelitis, humerus
M86.221 Subacute osteomyelitis, right humerus
M86.222 Subacute osteomyelitis, left humerus

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