ICD-10-CM 2027 diagnosis code
M62.229Nontraumatic ischemic infarction of muscle, unspecified upper arm
M62.229 is a valid, billable ICD-10-CM code for nontraumatic ischemic infarction of muscle, unspecified upper arm. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Nontraumatic ischemic infarction of muscle, unsp upper arm
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 M62.229
M62.229 is the ICD-10-CM diagnosis code for nontraumatic ischemic infarction of muscle, unspecified upper arm. It belongs to category M62 (other disorders of muscle), 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 M62.22, choose M62.229 (unspecified upper arm) only when documentation doesn't support a more specific option: right upper arm (M62.221) and left upper arm (M62.222).
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 728.89 (other disorders of muscle, ligament, and fascia).
Notes that apply from higher levels
Instructions written at a parent level also apply to M62.229.
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.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
ICD-9-CM equivalent
Converter →- 728.89Other disorders of muscle, ligament, and fasciaapproximate
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 M62.229
Is M62.229 billable?
- Yes. M62.229 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M62.229 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M62.229 as a principal diagnosis.
Is M62.229 a CC or MCC?
- No. M62.229 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does M62.229 group to?
- M62.229 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 M62.229?
- The CMS General Equivalence Mappings map M62.229 to ICD-9-CM 728.89.