2022 ICD-10-CM Diagnosis Code M86.661

Other chronic osteomyelitis, right tibia and fibula

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • M86.661 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM M86.661 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of M86.661 - other international versions of ICD-10 M86.661 may differ.
The following code(s) above M86.661 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 M86.661:
  • M00-M99
    2022 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
    2022 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 2021 2022 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    Use Additional
    • code (B95-B97) to identify infectious agent
Approximate Synonyms
  • Chronic osteomyelitis of right tibia
ICD-10-CM M86.661 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 485 Knee procedures with principal diagnosis of infection with mcc
  • 486 Knee procedures with principal diagnosis of infection with cc
  • 487 Knee procedures with principal diagnosis of infection without cc/mcc
  • 539 Osteomyelitis with mcc
  • 540 Osteomyelitis with cc
  • 541 Osteomyelitis without cc/mcc

Convert M86.661 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
  • 2022 (effective 10/1/2021): No change
ICD-10-CM Codes Adjacent To M86.661
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
M86.8 Other osteomyelitis
M86.8X Other osteomyelitis

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