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ICD-10-CM 2027 diagnosis code

M60.862Other myositis, left lower leg

✓ Billable / specific

M60.862 is a valid, billable ICD-10-CM code for other myositis, left lower leg. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 M60.862

M60.862 is the ICD-10-CM diagnosis code for other myositis, left lower leg. It belongs to category M60 (myositis), block M60-M63 (disorders of muscles) 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 M60.86 (other myositis, lower leg), M60.862 is specifically for other myositis, left lower leg. Related codes cover right lower leg (M60.861) and unspecified lower leg (M60.869).

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 555 (Signs and Symptoms of Musculoskeletal System and Connective Tissue with MCC, relative weight 1.2913) and DRG 556 (Signs and Symptoms of Musculoskeletal System and Connective Tissue without MCC, relative weight 0.8211), 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 729.1 (myalgia and myositis, unspecified).

Notes that apply from higher levels

Instructions written at a parent level also apply to M60.862.

› From M60 Myositis
Excludes2
  • inclusion body myositis [IBM] (G72.41)

Broader instructions also apply from M60-M63 Disorders of muscles and 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.

ICD-9-CM equivalent

Converter →
  • 729.1Myalgia and myositis, unspecifiedapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about M60.862

Is M60.862 billable?

Yes. M60.862 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M60.862 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M60.862 as a principal diagnosis.

Is M60.862 a CC or MCC?

No. M60.862 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does M60.862 group to?

M60.862 is used in the MS-DRG v44.0 logic for MS-DRG 555 (Signs and Symptoms of Musculoskeletal System and Connective Tissue with MCC) and MS-DRG 556 (Signs and Symptoms of Musculoskeletal System and Connective Tissue 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 M60.862?

The CMS General Equivalence Mappings map M60.862 to ICD-9-CM 729.1.