2027 ICD-10-CM Diagnosis Code S57.82XACrushing injury of left forearm, initial encounter

ICD-10-CM Codes›S00–T88›S50-S59›S57

ICD-10-CM S57.82XA
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S57.82XA is a billable ICD-10-CM diagnosis code for crushing injury of left forearm, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 913 through 914, 963 through 965. Coders also document this condition as crush injury of left forearm. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Crushing injury, initial encounter.

Code Identity

ICD-10-CM Code
S57.82XA
Billable Status
Yes — Valid for Submission
Code Describes
Crushing injury of left forearm, initial encounter
Short Description
Crushing injury of left forearm, initial encounter
Same as the full description in the CMS dataset.
Parent Code
S57.82
Crushing injury of left forearm

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS50-S59Injuries to the elbow and forearm
CategoryS57Crushing injury of elbow and forearm
This CodeS57.82XACrushing injury of left forearm, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Crush injury of left forearm
  • Crushing injury of forearm

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Crushing injury of elbow and forearm (S57). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S57.82XA: its own notes plus those printed at S57, block S50-S59, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From S57 Crushing injury of elbow and forearm applies to 18 codes
  • crushing injury of wrist and hand (S67.-)
From Block S50-S59 Injuries to the elbow and forearm applies to 4,362 codes
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of wrist and hand (S60-S69)
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From S57 Crushing injury of elbow and forearm applies to 18 codes
  • code(s) for all associated injuries
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From S57 Crushing injury of elbow and forearm applies to 18 codes
  • The appropriate 7th character is to be added to each code from category S57
Values for category S57 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter this code
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ018
Crushing injury, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Arm Injuries and Disorders

Of the 206 bones in your body, three of them are in your arm: the humerus, radius, and ulna. Your arms are also made up of muscles, joints, tendons, and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall, or an accident.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S57.82XA to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
927.10 Crushing injury forearm
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S57.82XAOverview

What is the ICD-10 code for crushing injury of left forearm, initial encounter?

The ICD-10-CM code for crushing injury of left forearm, initial encounter is S57.82XA (sometimes written as S5782XA). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is S57.82XA (Crushing injury of left forearm) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report crushing injury of left forearm, initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character A in S57.82XA mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for crushing injury of left forearm, such as an emergency visit or first evaluation.

What MS-DRG does S57.82XA group to?

When crushing injury of left forearm, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 964, 965, 914, 913, 963, with relative weights from 0.9281 to 2.6361 depending on complications. Higher weights mean higher Medicare reimbursement.

Does S57.82XA need an additional code?

When the condition applies, yes. The Use Additional Code note at S57, which applies to S57.82XA, reads: code(s) for all associated injuries. The additional code is reported after S57.82XA.