ICD-10-CM Codes
M00-M99 Diseases of the musculoskeletal system and connective tissue
M65-M67 Disorders of synovium and tendon
M66- Spontaneous rupture of synovium and tendon
2021 ICD-10-CM Diagnosis Code M66.88

2021 ICD-10-CM Diagnosis Code M66.88

Spontaneous rupture of other tendons, other sites

2016

2017

2018

2019

2020 - Revised Code

2021

Billable/Specific Code

M66.88 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 M66.88 became effective on October 1, 2020.
This is the American ICD-10-CM version of M66.88 - other international versions of ICD-10 M66.88 may differ.

The following code(s) above M66.88 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 M66.88:

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
M66
ICD-10-CM Diagnosis Code M66
Spontaneous rupture of synovium and tendon
Includes
- rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
Type 2 Excludes
- rotator cuff syndrome (M75.1-)
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
Spontaneous rupture of synovium and tendon

Approximate Synonyms

Non-traumatic rupture of tendon of left patella
Non-traumatic rupture of tendon of left quadriceps muscle
Non-traumatic rupture of tendon of right patella
Non-traumatic rupture of tendon of right quadriceps muscle
Nontraumatic tear of bilateral patellar tendon
Nontraumatic tear of bilateral patellar tendons
Nontraumatic tear of bilateral quadriceps tendon
Nontraumatic tear of bilateral quadriceps tendons
Nontraumatic tear of left patellar tendon
Nontraumatic tear of left quadriceps tendon
Nontraumatic tear of right patellar tendon
Nontraumatic tear of right quadriceps tendon

ICD-10-CM M66.88 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

557 Tendonitis, myositis and bursitis with mcc
558 Tendonitis, myositis and bursitis without mcc

Convert M66.88 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): Revised code
- New description: Spontaneous rupture of other tendons, other sites
- 2019 description: Spontaneous rupture of other tendons, other
2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to M66.88:

Rupture, ruptured
- tendon (traumatic) - see Strain
  - nontraumatic (spontaneous) M66.9
    ICD-10-CM Diagnosis Code M66.9
    Spontaneous rupture of unspecified tendon
    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    Rupture at musculotendinous junction, nontraumatic
    - specified
      - site NEC M66.88

ICD-10-CM Codes Adjacent To M66.88

M66.852 Spontaneous rupture of other tendons, left thigh

M66.859 Spontaneous rupture of other tendons, unspecified thigh

M66.86 Spontaneous rupture of other tendons, lower leg

M66.861 Spontaneous rupture of other tendons, right lower leg

M66.862 Spontaneous rupture of other tendons, left lower leg

M66.869 Spontaneous rupture of other tendons, unspecified lower leg

M66.87 Spontaneous rupture of other tendons, ankle and foot

M66.871 Spontaneous rupture of other tendons, right ankle and foot

M66.872 Spontaneous rupture of other tendons, left ankle and foot

M66.879 Spontaneous rupture of other tendons, unspecified ankle and foot

M66.88 …… other sites

M66.89 …… multiple sites

M66.9 Spontaneous rupture of unspecified tendon

M67 Other disorders of synovium and tendon

M67.0 Short Achilles tendon (acquired)

M67.00 …… unspecified ankle

M67.01 …… right ankle

M67.02 …… left ankle

M67.2 Synovial hypertrophy, not elsewhere classified

M67.20 …… unspecified site

M67.21 Synovial hypertrophy, not elsewhere classified, shoulder

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

2021 ICD-10-CM Diagnosis Code M66.88

Spontaneous rupture of other tendons, other sites

Diseases of the musculoskeletal system and connective tissue

Spontaneous rupture of synovium and tendon

Spontaneous rupture of unspecified tendon