ICDcodes.org
FY2027

M84.378 — Stress fracture, left toe(s)

Not billable

Is M84.378 billable?

No — M84.378 is a non-billable header code. M84.378 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 6 billable codes beneath M84.378.

M84.378 at a glance

CodeM84.378
DescriptionStress fracture, left toe(s)
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is M84.378 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under M84.37, the nearest indexed parent of M84.378. Use them to find the family, then select the specific code.

  • Fracture, traumatic › stress › ankle (abduction) (adduction) (separation)
  • Fracture, traumatic › stress › metatarsus (abduction) (adduction) (separation)
  • Fracture, traumatic › stress › tarsus (abduction) (adduction) (separation)
  • Fracture, traumatic › stress › toe (abduction) (adduction) (separation)

Excludes1 — never code together — inherited from M84.3

The conditions below can never be reported together with M84.378 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Use additional code — inherited from M84.3

Report an additional code alongside M84.378 to fully describe the condition. M84.378 is sequenced first.

  • external cause code(s) to identify the cause of the stress fracture

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M84.378, but a patient may have both at the same time. When documentation supports it, M84.378 and the excluded code may both be reported.

  • 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)

Excludes2 — not included here — inherited from M84

The conditions below are not part of M84.378, but a patient may have both at the same time. When documentation supports it, M84.378 and the excluded code may both be reported.

  • traumatic fracture of bone-see fracture, by site

Excludes2 — not included here — inherited from M84.3

The conditions below are not part of M84.378, but a patient may have both at the same time. When documentation supports it, M84.378 and the excluded code may both be reported.

  • personal history of (healed) stress (fatigue) fracture (Z87.312)
  • stress fracture of vertebra (M48.4-)

What codes fall under M84.378? (6)

How long has M84.378 existed?

M84.378 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the M84.37 family? (8)