2026 ICD-10-CM Diagnosis Code S46Injury of muscle, fascia and tendon at shoulder and upper arm level

ICD-10-CM Codes›S00–T88›S40-S49›S46

ICD-10-CM S46
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S46 is a non-billable ICD-10-CM category code for injury of muscle, fascia and tendon at shoulder and upper arm level, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S46.001A, S46.001D, S46.001S, and S46.002A.

Code Identity

ICD-10-CM Code
S46
Billable Status
No — Non-Billable Category
Code Describes
Injury of muscle, fascia and tendon at shoulder and upper arm level
Short Description
Injury of muscle, fascia and tendon at shldr/up arm
Chapter
S40-S49
Injuries to the shoulder and upper arm

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS40-S49Injuries to the shoulder and upper arm
CategoryS46Injury of muscle, fascia and tendon at shoulder and upper arm level
This CodeS46Injury of muscle, fascia and tendon at shoulder and upper arm level

Specific Coding for Injury of muscle, fascia and tendon at shldr/up armOverview

Non-specific codes like S46 require more characters. Use one of these billable codes instead:

  • S46.0 for Injury of muscle(s) and tendon(s) of the rotator cuff of shoulder

  • S46.00 for Unspecified injury of muscle(s) and tendon(s) of the rotator cuff of shoulder

  • S46.01 for Strain of muscle(s) and tendon(s) of the rotator cuff of shoulder

  • S46.02 for Laceration of muscle(s) and tendon(s) of the rotator cuff of shoulder

  • S46.09 for Other injury of muscle(s) and tendon(s) of the rotator cuff of shoulder

  • S46.1 for Injury of muscle, fascia and tendon of long head of biceps

  • S46.10 for Unspecified injury of muscle, fascia and tendon of long head of biceps

  • S46.11 for Strain of muscle, fascia and tendon of long head of biceps

  • S46.12 for Laceration of muscle, fascia and tendon of long head of biceps

  • S46.19 for Other injury of muscle, fascia and tendon of long head of biceps

  • S46.2 for Injury of muscle, fascia and tendon of other parts of biceps

  • S46.20 for Unspecified injury of muscle, fascia and tendon of other parts of biceps

  • S46.21 for Strain of muscle, fascia and tendon of other parts of biceps

  • S46.22 for Laceration of muscle, fascia and tendon of other parts of biceps

  • S46.29 for Other injury of muscle, fascia and tendon of other parts of biceps

  • S46.3 for Injury of muscle, fascia and tendon of triceps

  • S46.30 for Unspecified injury of muscle, fascia and tendon of triceps

  • S46.31 for Strain of muscle, fascia and tendon of triceps

  • S46.32 for Laceration of muscle, fascia and tendon of triceps

  • S46.39 for Other injury of muscle, fascia and tendon of triceps

  • S46.8 for Injury of other muscles, fascia and tendons at shoulder and upper arm level

  • S46.80 for Unspecified injury of other muscles, fascia and tendons at shoulder and upper arm level

  • S46.81 for Strain of other muscles, fascia and tendons at shoulder and upper arm level

  • S46.82 for Laceration of other muscles, fascia and tendons at shoulder and upper arm level

  • S46.89 for Other injury of other muscles, fascia and tendons at shoulder and upper arm level

  • S46.9 for Injury of unspecified muscle, fascia and tendon at shoulder and upper arm level

  • S46.90 for Unspecified injury of unspecified muscle, fascia and tendon at shoulder and upper arm level

  • S46.91 for Strain of unspecified muscle, fascia and tendon at shoulder and upper arm level

  • S46.92 for Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level

  • S46.99 for Other injury of unspecified muscle, fascia and tendon at shoulder and upper arm level

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Injury of muscle, fascia and tendon at shoulder and upper arm level (S46). 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.

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Code Also

  • any associated open wound S41

Type 2 Excludes

  • injury of muscle, fascia and tendon at elbow S56
  • sprain of joints and ligaments of shoulder girdle S43.9

7th Character Note

  • The appropriate 7th character is to be added to each code from category S46

7th Character

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

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.

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 S46Overview

Is S46 a billable code?

No. This is a category header that groups the codes for injury of muscle, fascia and tendon at shoulder and upper arm level, and headers cannot be submitted on claims. Claims for injury of muscle, fascia and tendon at shoulder and upper arm level need a more specific code from this category, such as S46.001A, S46.001D, and S46.001S.