M84.478
Pathological fracture, left toe(s)
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 18 never code together
M84.4code
Excludes1
- collapsed vertebra NEC (M48.5)M48.5
- pathological fracture in neoplastic disease (M84.5-)M84.5-
- pathological fracture in osteoporosis (M80.-)M80.-
- pathological fracture in other disease (M84.6-)M84.6-
- stress fracture (M84.3-)M84.3-
- traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)S12.-S22.-S32.-S42.-S52.-S62.-S72.-S82.-S92.-
Excludes2
- personal history of (healed) pathological fracture (Z87.311)Z87.311
M84code
Excludes2
- traumatic fracture of bone-see fracture, by site
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 6
A initial encounter for fracture
D subsequent encounter for fracture with routine healing
G subsequent encounter for fracture with delayed healing
K subsequent encounter for fracture with nonunion
P subsequent encounter for fracture with malunion
S sequela
Instructional notes 3
Index entries leading here 1
Alongside this code 8 same parent — M84.47
M84.471 Pathological fracture, right ankle category M84.472 Pathological fracture, left ankle category M84.473 Pathological fracture, unspecified ankle category M84.474 Pathological fracture, right foot category M84.475 Pathological fracture, left foot category M84.476 Pathological fracture, unspecified foot category M84.477 Pathological fracture, right toe(s) category M84.479 Pathological fracture, unspecified toe(s) category
Subordinate codes 6
M84.478A Pathological fracture, left toe(s), init encntr for fracture M84.478D Pathological fracture, left toe(s), subs for fx w routn heal M84.478G Pathological fracture, left toe(s), subs for fx w delay heal M84.478K Pathological fracture, left toe(s), subs for fx w nonunion M84.478P Pathological fracture, left toe(s), subs for fx w malunion M84.478S Pathological fracture, left toe(s), sequela
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.