ICD-10-CM Codes
M00-M99
M70-M79
M77-
2023 ICD-10-CM Diagnosis Code M77.5

2023 ICD-10-CM Diagnosis Code M77.5

Other enthesopathy of foot and ankle

2016

2017

2018

2019

2020 - Revised Code

2021

2022

2023

Non-Billable/Non-Specific Code

M77.5 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM M77.5 became effective on October 1, 2022.
This is the American ICD-10-CM version of M77.5 - other international versions of ICD-10 M77.5 may differ.

The following code(s) above M77.5 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 M77.5:

M00-M99
2023 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
M77
ICD-10-CM Diagnosis Code M77
Other enthesopathies
Type 1 Excludes
- bursitis NOS (M71.9-)
Type 2 Excludes
- bursitis due to use, overuse and pressure (M70.-)
- osteophyte (M25.7)
- spinal enthesopathy (M46.0-)
Other enthesopathies

Approximate Synonyms

Capsulitis of ankle
Capsulitis of tarsus

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: Other enthesopathy of foot and ankle
- 2019 description: Other enthesopathy of foot
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to M77.5:

Type 2 Excludes: M76

ICD-10-CM Diagnosis Code M76
Enthesopathies, lower limb, excluding foot
Type 2 Excludes
- bursitis due to use, overuse and pressure (M70.-)
- enthesopathies of ankle and foot (M77.5-)

Diagnosis Index entries containing back-references to M77.5:

Enthesopathy (peripheral) M77.9
ICD-10-CM Diagnosis Code M77.9
Enthesopathy, unspecified
Applicable To
Bone spur NOS
Capsulitis NOS
Periarthritis NOS
Tendinitis NOS
- ankle and tarsus M77.5-
- foot NEC M77.8
  ICD-10-CM Diagnosis Code M77.8
  Other enthesopathies, not elsewhere classified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - specified type NEC M77.5-
- lower limb (excluding foot) M76.9
  ICD-10-CM Diagnosis Code M76.9
  Unspecified enthesopathy, lower limb, excluding foot
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - ankle and tarsus M77.5-

ICD-10-CM Codes Adjacent To M77.5

M77.21 Periarthritis, right wrist

M77.22 Periarthritis, left wrist

M77.3 Calcaneal spur

M77.30 …… unspecified foot

M77.31 …… right foot

M77.32 …… left foot

M77.4 Metatarsalgia

M77.40 …… unspecified foot

M77.41 …… right foot

M77.42 …… left foot

M77.5 Other enthesopathy of foot and ankle

M77.50 Other enthesopathy of unspecified foot and ankle

M77.51 Other enthesopathy of right foot and ankle

M77.52 Other enthesopathy of left foot and ankle

M77.8 Other enthesopathies, not elsewhere classified

M77.9 Enthesopathy, unspecified

M79 Other and unspecified soft tissue disorders, not elsewhere classified

M79.0 Rheumatism, unspecified

M79.1 Myalgia

M79.10 …… unspecified site

M79.11 …… of mastication muscle

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

2023 ICD-10-CM Diagnosis Code M77.5

Other enthesopathy of foot and ankle

Diseases of the musculoskeletal system and connective tissue

Other enthesopathies

Enthesopathies, lower limb, excluding foot

Enthesopathy, unspecified

Other enthesopathies, not elsewhere classified

Unspecified enthesopathy, lower limb, excluding foot