2027 ICD-10-CM Diagnosis Code M24.851Other specific joint derangements of right hip, not elsewhere classified

ICD-10-CM Codes›M00–M99›M20-M25›M24

ICD-10-CM M24.851
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M24.851 is a billable ICD-10-CM diagnosis code for other specific joint derangements of right hip, not elsewhere classified. 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 bilateral hip joint derangement. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M24.851
Billable Status
Yes — Valid for Submission
Code Describes
Other specific joint derangements of right hip, not elsewhere classified
Short Description
Oth specific joint derangements of right hip, NEC
Parent Code
M24.85
Other specific joint derangements of hip, not elsewhere classified

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM24Other specific joint derangements
This CodeM24.851Other specific joint derangements of right hip, not elsewhere classified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral hip joint derangement
  • Bilateral snapping of hips
  • Derangement of joint of hip
  • Derangement of left hip joint
  • Derangement of right hip joint
  • Snapping hip
  • Snapping left hip
  • Snapping right hip

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M24.851: its own notes plus those printed at M24.8, 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 M24.8 Other specific joint derangements, not elsewhere classified applies to 23 codes
  • iliotibial band syndrome (M76.3)
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

Patient EducationClinical

Hip Injuries and Disorders

Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a socket in the pelvis. Your hip is known as a ball-and-socket joint. This is because you have a ball at the end of your femur, and it fits into a socket in your pelvis.

Read the full article at MedlinePlus

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

Convert M24.851 to ICD-9-CMHistory

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

ICD-9-CM
718.75 Dev dis jt-pelvic/thigh
Approximate The match is approximate rather than exact.
ICD-9-CM
718.85 Jt derangment NEC-pelvis
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 M24.851Overview

Is M24.851 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specific joint derangements of right hip, not elsewhere classified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M24.851 group to?

When other specific joint derangements of right hip, not elsewhere classified 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 M24.851?

Under the General Equivalence Mappings, other specific joint derangements of right hip, not elsewhere classified converts to ICD-9-CM 718.75 (dev dis jt-pelvic/thigh) and 718.85 (jt derangment NEC-pelvis). The mapping is approximate, so confirm the match fits the documentation.