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ICD-10-CM 2027 diagnosis code

M93.021Chronic slipped upper femoral epiphysis, stable (nontraumatic), right hip

✓ Billable / specific

M93.021 is a valid, billable ICD-10-CM code for chronic slipped upper femoral epiphysis, stable (nontraumatic), right hip. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Chronic slipped upper femoral epiphysis, stable, right hip

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About M93.021

M93.021 is the ICD-10-CM diagnosis code for chronic slipped upper femoral epiphysis, stable (nontraumatic), right hip. It belongs to category M93 (other osteochondropathies), block M91-M94 (Chondropathies) 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 M93.02 (chronic slipped upper femoral epiphysis, stable (nontraumatic)), M93.021 is specifically for chronic slipped upper femoral epiphysis, stable (nontraumatic), right hip. Related codes cover left hip (M93.022), unspecified hip (M93.023) and bilateral hips (M93.024).

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 553 (Bone Diseases and Arthropathies with MCC, relative weight 1.2494) and DRG 554 (Bone Diseases and Arthropathies without MCC, relative weight 0.8331), 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 changed in FY2023 (title revised).

Before ICD-10, this condition was coded in ICD-9-CM as 732.2 (nontraumatic slipped upper femoral epiphysis).

Notes that apply from higher levels

Instructions written at a parent level also apply to M93.021.

› From M93.0 Slipped upper femoral epiphysis (nontraumatic)
Use additional code
  • code for associated chondrolysis (M94.3)
› From M93 Other osteochondropathies
Excludes2
  • osteochondrosis of spine (M42.-)

Broader instructions also apply from M91-M94 Chondropathies 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 →
  • 732.2Nontraumatic slipped upper femoral epiphysisapproximate

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)
  • FY2023 (effective 10/1/2022): Title revised — was “Chronic slipped upper femoral epiphysis (nontraumatic), right hip”

Common questions about M93.021

Is M93.021 billable?

Yes. M93.021 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M93.021 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M93.021 as a principal diagnosis.

Is M93.021 a CC or MCC?

No. M93.021 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does M93.021 group to?

M93.021 is used in the MS-DRG v44.0 logic for MS-DRG 553 (Bone Diseases and Arthropathies with MCC) and MS-DRG 554 (Bone Diseases and Arthropathies 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 M93.021?

The CMS General Equivalence Mappings map M93.021 to ICD-9-CM 732.2.