2027 ICD-10-CM Diagnosis Code M24.012Loose body in left shoulder

ICD-10-CM Codes›M00–M99›M20-M25›M24

ICD-10-CM M24.012
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M24.012 is a billable ICD-10-CM diagnosis code for loose body in left shoulder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 564 through 566. Coders also document this condition as loose body in joint of bilateral shoulder regions. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M24.012
Billable Status
Yes — Valid for Submission
Code Describes
Loose body in left shoulder
Short Description
Loose body in left shoulder
Same as the full description in the CMS dataset.
Parent Code
M24.01
Loose body in shoulder

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM24Other specific joint derangements
This CodeM24.012Loose body in left shoulder

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Loose body in joint of bilateral shoulder regions
  • Loose body in joint of left shoulder region
  • Loose body in joint of right shoulder region
  • Loose body in joint of shoulder region

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M24.012: its own notes plus those printed at M24.0, M24, block M00-M25, block M20-M25, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block M00-M25 applies to 2,249 codes
  • Disorders affecting predominantly peripheral (limb) joints

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From M24 Other specific joint derangements applies to 205 codes
  • current injury - see injury of joint by body region

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 M24.0 Loose body in joint applies to 23 codes
  • loose body in knee (M23.4)
From M24 Other specific joint derangements applies to 205 codes
From Block M20-M25 Other joint disorders applies to 719 codes
From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

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 MUS007
Other specified joint disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Loose Skeletal Fragments in Synovial Joint

    presence of fibrous, bony, cartilaginous or osseocartilaginous fragments in a synovial joint.

Patient EducationClinical

Shoulder Injuries and Disorders

Your shoulder joint is composed of three bones: the clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone). Your shoulders are the most movable joints in your body. They can also be unstable because the ball of the upper arm is larger than the shoulder socket that holds it.

Read the full article at MedlinePlus

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

Convert M24.012 to ICD-9-CMHistory

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

ICD-9-CM
718.11 Loose body-shlder
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 M24.012Overview

What is the ICD-10 code for loose body in left shoulder?

The ICD-10-CM code for loose body in left shoulder is M24.012 (sometimes written as M24012). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M24.012 (Loose body in shoulder) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report loose body in left shoulder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M24.012 group to?

When loose body in left shoulder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 566, 565, with relative weights from 0.7374 to 1.4909 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M24.012?

Under the General Equivalence Mappings, loose body in left shoulder converts to ICD-9-CM 718.11 (loose body-shlder). The mapping is approximate, so confirm the match fits the documentation.