M48.4

ICD-10Non-billable category

Fatigue fracture of vertebra

Official ICD-10-CM descriptor (FY2026)

Fatigue fracture of vertebra

M48.4 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Inclusion terms

  • Stress fracture of vertebra

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • pathological fracture NOS (M84.4-)
  • pathological fracture of vertebra due to neoplasm (M84.58)
  • pathological fracture of vertebra due to other diagnosis (M84.68)
  • pathological fracture of vertebra due to osteoporosis (M80.-)
  • traumatic fracture of vertebrae (S12.0-S12.3-, S22.0-, S32.0-)

7th character

  • The appropriate 7th character is to be added to each code from subcategory M48.4:

Permitted 7th characters

Ainitial encounter for fracture
Dsubsequent encounter for fracture with routine healing
Gsubsequent encounter for fracture with delayed healing
Ssequela of fracture

ICD-10-CM FY2026 defines 9 codes beneath M48.4. See the ICD-10-CM index for what this site publishes.

Related codes in M48

Where this code sits

Parent code
M48

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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