2020 ICD-10-CM Diagnosis Code M86.659

Other chronic osteomyelitis, unspecified thigh

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M86.659 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM M86.659 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M86.659 - other international versions of ICD-10 M86.659 may differ.
The following code(s) above M86.659 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 M86.659:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    • 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
    2020 ICD-10-CM Range M86-M90

    Other osteopathies

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


      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    Use Additional
    • code (B95-B97) to identify infectious agent
Approximate Synonyms
  • Osteomyelitis pelvic region, chronic
  • Osteomyelitis thigh, chronic
  • Pelvis - chronic osteomyelitis
  • Thigh - chronic osteomyelitis
ICD-10-CM M86.659 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 539 Osteomyelitis with mcc
  • 540 Osteomyelitis with cc
  • 541 Osteomyelitis without cc/mcc

Convert M86.659 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

Diagnosis Index entries containing back-references to M86.659:
  • 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 Billable/Specific Code
    Applicable To
    • Infection of bone NOS
    • Periostitis without osteomyelitis
    • chronic (or old) M86.60
      ICD-10-CM Diagnosis Code M86.60

      Other chronic osteomyelitis, unspecified site

        2016 2017 2018 2019 2020 Billable/Specific Code
      • ilium M86.659
      • ischium M86.659

ICD-10-CM Codes Adjacent To M86.659
M86.631 Other chronic osteomyelitis, right radius and ulna
M86.632 Other chronic osteomyelitis, left radius and ulna
M86.639 Other chronic osteomyelitis, unspecified radius and ulna
M86.64 Other chronic osteomyelitis, hand
M86.641 Other chronic osteomyelitis, right hand
M86.642 Other chronic osteomyelitis, left hand
M86.649 Other chronic osteomyelitis, unspecified hand
M86.65 Other chronic osteomyelitis, thigh
M86.651 Other chronic osteomyelitis, right thigh
M86.652 Other chronic osteomyelitis, left thigh
M86.659 Other chronic osteomyelitis, unspecified thigh
M86.66 Other chronic osteomyelitis, tibia and fibula
M86.661 Other chronic osteomyelitis, right tibia and fibula
M86.662 Other chronic osteomyelitis, left tibia and fibula
M86.669 Other chronic osteomyelitis, unspecified tibia and fibula
M86.67 Other chronic osteomyelitis, ankle and foot
M86.671 Other chronic osteomyelitis, right ankle and foot
M86.672 Other chronic osteomyelitis, left ankle and foot
M86.679 Other chronic osteomyelitis, unspecified ankle and foot
M86.68 …… other site
M86.69 …… multiple sites

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