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ICD-10-CM 2027 diagnosis code

S78.021SPartial traumatic amputation at right hip joint, sequela

✓ Billable / specificPOA exemptRequires 7th character

S78.021S is a valid, billable ICD-10-CM code for partial traumatic amputation at right hip joint, sequela. 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 S78.021S

S78.021S is the ICD-10-CM diagnosis code for partial traumatic amputation at right hip joint, sequela. It belongs to category S78 (traumatic amputation of hip and thigh), block S70-S79 (injuries to the hip and thigh) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.

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 559 (Aftercare, Musculoskeletal System and Connective Tissue with MCC, relative weight 1.8088), DRG 560 (Aftercare, Musculoskeletal System and Connective Tissue with CC, relative weight 1.1238) and DRG 561 (Aftercare, Musculoskeletal System and Connective Tissue without CC/MCC, relative weight 0.8258), 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 is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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 905.9 (late effect of traumatic amputation).

7th character

Ssequela

CC/MCC status for this injury by encounter: CC for A; Neither CC nor MCC for D, S.

Other encounter types for S78.021:

Notes that apply from higher levels

Instructions written at a parent level also apply to S78.021S.

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 →
  • 905.9Late effect of traumatic amputationapproximate

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 S78.021S

Is S78.021S billable?

Yes. S78.021S is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "S" at the end of S78.021S mean?

It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.

Can S78.021S be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict S78.021S as a principal diagnosis.

Is S78.021S a CC or MCC?

No. S78.021S is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does S78.021S group to?

S78.021S is used in the MS-DRG v44.0 logic for MS-DRG 559 (Aftercare, Musculoskeletal System and Connective Tissue with MCC), MS-DRG 560 (Aftercare, Musculoskeletal System and Connective Tissue with CC) and MS-DRG 561 (Aftercare, Musculoskeletal System and Connective Tissue without CC/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 S78.021S?

The CMS General Equivalence Mappings map S78.021S to ICD-9-CM 905.9.