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ICD-10-CM 2027 diagnosis code

S59.809SOther specified injuries of unspecified elbow, sequela

✓ Billable / specificPOA exemptRequires 7th character

S59.809S is a valid, billable ICD-10-CM code for other specified injuries of unspecified elbow, 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 S59.809S

S59.809S is the ICD-10-CM diagnosis code for other specified injuries of unspecified elbow, sequela. It belongs to category S59 (other and unspecified injuries of elbow and forearm), block S50-S59 (injuries to the elbow and forearm) 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 913 (Traumatic Injury with MCC, relative weight 1.5455) and DRG 914 (Traumatic Injury without MCC, relative weight 0.9285), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), 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 908.9 (late effect of unspecified injury).

7th character

Ssequela

Other encounter types for S59.809:

Notes that apply from higher levels

Instructions written at a parent level also apply to S59.809S.

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 21 · Injuries, Poisonings and Toxic Effects of Drugs

ICD-9-CM equivalent

Converter →
  • 908.9Late effect of unspecified injuryapproximate

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 S59.809S

Is S59.809S billable?

Yes. S59.809S 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 S59.809S 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 S59.809S be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict S59.809S as a principal diagnosis.

Is S59.809S a CC or MCC?

No. S59.809S is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does S59.809S group to?

S59.809S is used in the MS-DRG v44.0 logic for MS-DRG 913 (Traumatic Injury with MCC) and MS-DRG 914 (Traumatic Injury 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 S59.809S?

The CMS General Equivalence Mappings map S59.809S to ICD-9-CM 908.9.