2021

  1. ICD-10-CM Codes
    2. ›
  2. M00-M99 Diseases of the musculoskeletal system and connective tissue
    3. ›
  3. M86-M90 Other osteopathies
    4. ›
  4. M87- Osteonecrosis
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code M87.366

2021 ICD-10-CM Diagnosis Code M87.366

Other secondary osteonecrosis, unspecified fibula

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M87.366 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 M87.366 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M87.366 - other international versions of ICD-10 M87.366 may differ.
The following code(s) above M87.366 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 M87.366:
  • 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
  • M87
    ICD-10-CM Diagnosis Code M87

    Osteonecrosis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • avascular necrosis of bone
    Type 1 Excludes
    • juvenile osteonecrosis (M91-M92)
    • osteochondropathies (M90-M93)
    Use Additional
    • code to identify major osseous defect, if applicable (M89.7-)
    Osteonecrosis
ICD-10-CM M87.366 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 553 Bone diseases and arthropathies with mcc
  • 554 Bone diseases and arthropathies without mcc

Convert M87.366 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 M87.366:
  • Osteonecrosis M87.9
    ICD-10-CM Diagnosis Code M87.9

    Osteonecrosis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Necrosis of bone NOS
    • secondary NEC M87.30
      ICD-10-CM Diagnosis Code M87.30

      Other secondary osteonecrosis, unspecified bone

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • tibia M87.366

ICD-10-CM Codes Adjacent To M87.366
M87.350 Other secondary osteonecrosis, pelvis
M87.351 Other secondary osteonecrosis, right femur
M87.352 Other secondary osteonecrosis, left femur
M87.353 Other secondary osteonecrosis, unspecified femur
M87.36 Other secondary osteonecrosis, tibia and fibula
M87.361 Other secondary osteonecrosis, right tibia
M87.362 Other secondary osteonecrosis, left tibia
M87.363 Other secondary osteonecrosis, unspecified tibia
M87.364 Other secondary osteonecrosis, right fibula
M87.365 Other secondary osteonecrosis, left fibula
M87.366 Other secondary osteonecrosis, unspecified fibula
M87.37 Other secondary osteonecrosis, ankle and foot
M87.371 Other secondary osteonecrosis, right ankle
M87.372 Other secondary osteonecrosis, left ankle
M87.373 Other secondary osteonecrosis, unspecified ankle
M87.374 Other secondary osteonecrosis, right foot
M87.375 Other secondary osteonecrosis, left foot
M87.376 Other secondary osteonecrosis, unspecified foot
M87.377 Other secondary osteonecrosis, right toe(s)
M87.378 Other secondary osteonecrosis, left toe(s)
M87.379 Other secondary osteonecrosis, unspecified toe(s)

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

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