2027 ICD-10-CM Diagnosis Code M84.753SIncomplete atypical femoral fracture, unspecified leg, sequela

ICD-10-CM Codes›M00–M99›M80-M85›M84

ICD-10-CM M84.753S
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M84.753S is a billable ICD-10-CM diagnosis code for incomplete 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 2027 (October 1, 2026 through September 30, 2027) 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
M84.753S
Billable Status
Yes — Valid for Submission
Code Describes
Incomplete atypical femoral fracture, unspecified leg, sequela
Short Description
Incomplete atypical femoral fracture, unsp leg, sequela
Parent Code
M84.753
Incomplete 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 CodeM84.753SIncomplete atypical femoral fracture, unspecified leg, sequela

Present on Admission (POA)Billing

M84.753S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Disorders of bone density and structure (M80-M85).

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M84.753S: its own notes plus those printed at M84.75, M84, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

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 M84 Disorder of continuity of bone applies to 928 codes
  • traumatic fracture of bone-see fracture, by site
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

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From M84.75 Atypical femoral fracture applies to 60 codes
  • The appropriate 7th character is to be added to each code from M84.75:
Values for category M84.75 Pathological Fracture Encounter
  • Ainitial encounter for fracture
  • Dsubsequent encounter for fracture with routine healing
  • Gsubsequent encounter for fracture with delayed healing
  • Ksubsequent encounter for fracture with nonunion
  • Psubsequent encounter for fracture with malunion
  • Ssequela this code

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 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 M84.753S 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 M84.753S 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 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M84.753SOverview

What is the ICD-10 code for incomplete atypical femoral fracture, unspecified leg, sequela?

The ICD-10-CM code for incomplete atypical femoral fracture, unspecified leg, sequela is M84.753S (sometimes written as M84753S). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M84.753S (Incomplete atypical femoral fracture, unspecified leg) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report incomplete atypical femoral fracture, unspecified leg, sequela on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character S in M84.753S mean?

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

What MS-DRG does M84.753S group to?

When incomplete atypical femoral fracture, unspecified leg, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 559, 561, 560, with relative weights from 0.8258 to 1.8087 depending on complications. Higher weights mean higher Medicare reimbursement.

Is M84.753S 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 incomplete atypical femoral fracture, unspecified leg, sequela on inpatient claims. The code appears in the Disorders of bone density and structure (M80-M85) range of the CMS exempt list.