2026 ICD-10-CM Diagnosis Code S41.101SUnspecified open wound of right upper arm, sequela

ICD-10-CM Codes›S00–T88›S40-S49›S41

ICD-10-CM S41.101S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S41.101S is a billable ICD-10-CM diagnosis code for unspecified open wound of right upper arm, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 604 through 605. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
S41.101S
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified open wound of right upper arm, sequela
Short Description
Unspecified open wound of right upper arm, sequela
Same as the full description in the CMS dataset.
Parent Code
S41.101
Unspecified open wound of right upper arm

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS40-S49Injuries to the shoulder and upper arm
CategoryS41Open wound of shoulder and upper arm
This CodeS41.101SUnspecified open wound of right upper arm, sequela

Present on Admission (POA)Billing

S41.101S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Fracture of anatomical neck of humerus
  • Fracture of greater tuberosity of humerus
  • Fracture of lateral condyle of humerus
  • Fracture of shaft of humerus
  • Fracture of shaft of right humerus
  • Fracture of surgical neck of humerus
  • Open fracture of anatomical neck of proximal right humerus
  • Open fracture of condyle of humerus
  • Open fracture of distal right humerus
  • Open fracture of greater tubercule of right humerus
  • Open fracture of humerus, upper epiphysis
  • Open fracture of lateral condyle of humerus
  • Open fracture of lateral condyle of right humerus
  • Open fracture of proximal humerus, anatomical neck
  • Open fracture of proximal right humerus
  • Open fracture of right elbow
  • Open fracture of right humerus
  • Open fracture of shaft of humerus
  • Open fracture of shaft of right humerus
  • Open fracture of surgical neck of humerus
  • Open fracture of surgical neck of right humerus
  • Open fracture proximal humerus, greater tuberosity
  • Open fracture proximal humerus, neck
  • Open supracondylar fracture of right humerus
  • Open wound of right axillary region
  • Open wound of right upper arm
  • Supracondylar fracture of humerus
  • Supracondylar fracture of right humerus

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of shoulder and upper arm (S41). 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 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

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

CCSR INJ073
Injury, sequela
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 S41.101S to ICD-9-CMHistory

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

ICD-9-CM
906.1 Late eff open wnd extrem
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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S41.101SOverview

Is S41.101S (Unspecified open wound of right upper arm) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified open wound of right upper arm, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in S41.101S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the unspecified open wound of right upper arm itself has resolved, not the original event.

What MS-DRG does S41.101S group to?

When unspecified open wound of right upper arm, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, with relative weights from 0.9160 to 1.4721 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S41.101S exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for unspecified open wound of right upper arm, sequela on inpatient claims.

What is the ICD-9 equivalent of S41.101S?

Under the General Equivalence Mappings, unspecified open wound of right upper arm, sequela converts to ICD-9-CM 906.1 (late eff open wnd extrem). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.