2026 ICD-10-CM Diagnosis Code M84.759SComplete oblique atypical femoral fracture, unspecified leg, sequela

ICD-10-CM CodesM00–M99M80-M85M84

ICD-10-CM M84.759S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M84.759S is a billable ICD-10-CM diagnosis code for complete oblique atypical femoral fracture, unspecified leg, 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 559 through 561. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pathological, stress and atypical fractures, sequela.

Code Identity

ICD-10-CM Code
M84.759S
Billable Status
Yes — Valid for Submission
Code Describes
Complete oblique atypical femoral fracture, unspecified leg, sequela
Short Description
Complete oblique atyp femoral fracture, unsp leg, sequela
Parent Code
Complete oblique atypical femoral fracture, unspecified leg

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM80-M85Disorders of bone density and structure
CategoryM84Disorder of continuity of bone
This CodeM84.759SComplete oblique atypical femoral fracture, unspecified leg, sequela

Present on Admission (POA)Billing

M84.759S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Clinical ClassificationClinical

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

CCSR MUS020
Pathological, stress and atypical fractures, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Fractures

A fracture is a break in a bone. Fractures are usually caused by injuries. Since they can sometimes be serious, it's important to get medical care right away if you think you have a fracture.

The full article covers:

  • What is a fracture?
  • What are the different types of fractures?
  • What causes fractures?
  • What are the symptoms of a fracture?
  • How are fractures diagnosed?
  • What are the treatments for fractures?
  • Can fractures be prevented?

Read the full article at MedlinePlus

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

Convert M84.759S to ICD-9-CMHistory

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

ICD-9-CM
905.4 Late effect leg fx
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement M84.759S replaces the following previously assigned code(s):

  • S72.8X1S - Other fracture of right femur, sequela
  • S72.8X2S - Other fracture of left femur, sequela
  • S72.8X9S - Other fracture of unspecified femur, sequela
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M84.759SOverview

Is M84.759S (Complete oblique atypical femoral fracture, unspecified leg) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report complete oblique atypical femoral fracture, unspecified leg, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in M84.759S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the complete oblique atypical femoral fracture, unspecified leg itself has resolved, not the original event.

What MS-DRG does M84.759S group to?

When complete oblique atypical femoral fracture, unspecified leg, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 559, 560, 561, with relative weights from 0.8039 to 1.8649 depending on complications. Higher weights mean higher Medicare reimbursement.

Is M84.759S 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 complete oblique atypical femoral fracture, unspecified leg, sequela on inpatient claims.

What is the ICD-9 equivalent of M84.759S?

Under the General Equivalence Mappings, complete oblique atypical femoral fracture, unspecified leg, sequela converts to ICD-9-CM 905.4 (late effect leg fx). 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.