ICD-10-CM 2027 diagnosis code
M76.899Other specified enthesopathies of unspecified lower limb, excluding foot
M76.899 is a valid, billable ICD-10-CM code for other specified enthesopathies of unspecified lower limb, excluding foot. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Oth enthesopathies of unspecified lower limb, excluding foot
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M76.899
M76.899 is the ICD-10-CM diagnosis code for other specified enthesopathies of unspecified lower limb, excluding foot. It belongs to category M76 (enthesopathies, lower limb, excluding foot), block M70-M79 (other soft tissue disorders) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within M76.89, choose M76.899 (unspecified lower limb, excluding foot) only when documentation doesn't support a more specific option: right lower limb, excluding foot (M76.891) and left lower limb, excluding foot (M76.892).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 557 (Tendonitis, Myositis and Bursitis with MCC, relative weight 1.489) and DRG 558 (Tendonitis, Myositis and Bursitis without MCC, relative weight 0.8875), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 726.69 (other enthesopathy of knee) and 726.70 (enthesopathy of ankle and tarsus, unspecified).
Notes that apply from higher levels
Instructions written at a parent level also apply to M76.899.
Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
ICD-9-CM equivalent
Converter →- 726.69Other enthesopathy of kneeapproximate
- 726.70Enthesopathy of ankle and tarsus, unspecifiedapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M76.899
Is M76.899 billable?
- Yes. M76.899 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M76.899 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M76.899 as a principal diagnosis.
Is M76.899 a CC or MCC?
- No. M76.899 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does M76.899 group to?
- M76.899 is used in the MS-DRG v44.0 logic for MS-DRG 557 (Tendonitis, Myositis and Bursitis with MCC) and MS-DRG 558 (Tendonitis, Myositis and Bursitis without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for M76.899?
- The CMS General Equivalence Mappings map M76.899 to ICD-9-CM 726.69 and 726.70.