M84.479 is the authoritative medical code for Pathological fracture, unspecified toe(s). This classification is used in medical billing and clinical recording to specify the clinical criteria for pathological fracture, unspecified toe(s) (ICD-10-CM M84.479), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Pathological fracture, unspecified toe(s) is a non-billable ICD-10-CM category code M84.479. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): collapsed vertebra NEC M48.5; pathological fracture in neoplastic disease M84.5-; pathological fracture in osteoporosis M80.-; pathological fracture in other disease M84.6-; stress fracture M84.3-; traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-). Excludes2 (not included here): personal history of healed pathological fracture Z87.311; traumatic fracture of bone-see fracture, by site. 7th character: The appropriate 7th character is to be added to each code from subcategory M84.4:.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M84.479 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- collapsed vertebra NEC M48.5
- pathological fracture in neoplastic disease M84.5-
- pathological fracture in osteoporosis M80.-
- pathological fracture in other disease M84.6-
- stress fracture M84.3-
- traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- personal history of healed pathological fracture Z87.311
- traumatic fracture of bone-see fracture, by site
Frequently Asked Questions (FAQ) & Clinical Guidance
Can M84.479 be billed directly?
No. M84.479 (Pathological fracture, unspecified toe(s)) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does M84.479 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from subcategory M84.4:.
What can't be coded together with M84.479?
Per official ICD-10-CM Excludes1 instructions, M84.479 must not be reported together with: collapsed vertebra NEC (M48.5); pathological fracture in neoplastic disease (M84.5-); pathological fracture in osteoporosis (M80.-); pathological fracture in other disease (M84.6-).
Can M84.479 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, M84.479 and the following are not considered part of each other and may both be reported when both conditions are present: personal history of (healed) pathological fracture (Z87.311); traumatic fracture of bone-see fracture, by site.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to M84.479 in its code family, with their registry titles.
- M84 — Disorder of continuity of bone
- M84.3 — Stress fracture
- M84.30 — Stress fracture, unspecified site
- M84.30XA — Stress fracture, unspecified site, initial encounter for fracture
- M84.30XD — Stress fracture, unspecified site, subsequent encounter for fracture with routine healing
- M84.30XG — Stress fracture, unspecified site, subsequent encounter for fracture with delayed healing
- M84.30XK — Stress fracture, unspecified site, subsequent encounter for fracture with nonunion
- M84.30XP — Stress fracture, unspecified site, subsequent encounter for fracture with malunion
- M84.30XS — Stress fracture, unspecified site, sequela
- M84.31 — Stress fracture, shoulder
View all 40 codes in the M84 family