2020 ICD-10-CM Diagnosis Code M65.00

Abscess of tendon sheath, unspecified site

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M65.00 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 M65.00 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M65.00 - other international versions of ICD-10 M65.00 may differ.
The following code(s) above M65.00 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 M65.00:
  • M00-M99
    2020 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
  • M65
    ICD-10-CM Diagnosis Code M65

    Synovitis and tenosynovitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • chronic crepitant synovitis of hand and wrist (M70.0-)
    • current injury - see injury of ligament or tendon by body region
    • soft tissue disorders related to use, overuse and pressure (M70.-)
    Synovitis and tenosynovitis
  • M65.0
    ICD-10-CM Diagnosis Code M65.0

    Abscess of tendon sheath

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Use Additional
    • code (B95-B96) to identify bacterial agent.
    Abscess of tendon sheath
Approximate Synonyms
  • Abscess of tendon
  • Abscess of tendon sheath
  • Tendon abscess
ICD-10-CM M65.00 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 557 Tendonitis, myositis and bursitis with mcc
  • 558 Tendonitis, myositis and bursitis without mcc

Convert M65.00 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 M65.00:
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
    ICD-10-CM Diagnosis Code L02.91

    Cutaneous abscess, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code

ICD-10-CM Codes Adjacent To M65.00
M63.862 Disorders of muscle in diseases classified elsewhere, left lower leg
M63.869 Disorders of muscle in diseases classified elsewhere, unspecified lower leg
M63.87 Disorders of muscle in diseases classified elsewhere, ankle and foot
M63.871 Disorders of muscle in diseases classified elsewhere, right ankle and foot
M63.872 Disorders of muscle in diseases classified elsewhere, left ankle and foot
M63.879 Disorders of muscle in diseases classified elsewhere, unspecified ankle and foot
M63.88 …… other site
M63.89 …… multiple sites
M65 Synovitis and tenosynovitis
M65.0 Abscess of tendon sheath
M65.00 …… unspecified site
M65.01 Abscess of tendon sheath, shoulder
M65.011 Abscess of tendon sheath, right shoulder
M65.012 Abscess of tendon sheath, left shoulder
M65.019 Abscess of tendon sheath, unspecified shoulder
M65.02 Abscess of tendon sheath, upper arm
M65.021 Abscess of tendon sheath, right upper arm
M65.022 Abscess of tendon sheath, left upper arm
M65.029 Abscess of tendon sheath, unspecified upper arm
M65.03 Abscess of tendon sheath, forearm
M65.031 Abscess of tendon sheath, right forearm

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