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ICD-10-CM 2027 diagnosis code

M75.121Complete rotator cuff tear or rupture of right shoulder, not specified as traumatic

✓ Billable / specific

M75.121 is a valid, billable ICD-10-CM code for complete rotator cuff tear or rupture of right shoulder, not specified as traumatic. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Complete rotatr-cuff tear/ruptr of r shoulder, not trauma

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 M75.121

M75.121 is the ICD-10-CM diagnosis code for complete rotator cuff tear or rupture of right shoulder, not specified as traumatic. It belongs to category M75 (shoulder lesions), 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 M75.12 (complete rotator cuff tear or rupture not specified as traumatic), M75.121 is specifically for complete rotator cuff tear or rupture of right shoulder, not specified as traumatic. Related codes cover unspecified shoulder, not specified as traumatic (M75.120) and left shoulder, not specified as traumatic (M75.122).

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 727.61 (complete rupture of rotator cuff).

Notes that apply from higher levels

Instructions written at a parent level also apply to M75.121.

› From M75.1 Rotator cuff tear or rupture, not specified as traumatic
Excludes1
  • tear of rotator cuff, traumatic (S46.01-)
› From M75 Shoulder lesions
Excludes2
  • shoulder-hand syndrome (M89.0-)

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 →
  • 727.61Complete rupture of rotator cuffapproximate

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 M75.121

Is M75.121 billable?

Yes. M75.121 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M75.121 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M75.121 as a principal diagnosis.

Is M75.121 a CC or MCC?

No. M75.121 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does M75.121 group to?

M75.121 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 M75.121?

The CMS General Equivalence Mappings map M75.121 to ICD-9-CM 727.61.