M84.661 – Pathological fracture in other disease, right tibia
ICD-10-CM 2027 diagnosis code · Disorders of bone density and structure
- Code
M84.661(claims format:M84661)- Description
- Pathological fracture in other disease, right tibia
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M80-M85 Disorders of bone density and structure
- Parent codes
- M84 › M84.6 › M84.66
Billable codes under M84.661
M84.661 is a header code and cannot be used on claims. Choose the most specific code:
- M84.661A – Pathological fracture in other disease, right tibia, initial encounter for fractureBillable
- M84.661D – Pathological fracture in other disease, right tibia, subsequent encounter for fracture with routine healingBillable
- M84.661G – Pathological fracture in other disease, right tibia, subsequent encounter for fracture with delayed healingBillable
- M84.661K – Pathological fracture in other disease, right tibia, subsequent encounter for fracture with nonunionBillable
- M84.661P – Pathological fracture in other disease, right tibia, subsequent encounter for fracture with malunionBillable
- M84.661S – Pathological fracture in other disease, right tibia, sequelaBillable
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
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 |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M84 – Disorder of continuity of bone
- traumatic fracture of bone-see fracture, by site
M84.6 – Pathological fracture in other disease
- pathological fracture in osteoporosis (M80.-)
- underlying condition
- The appropriate 7th character is to be added to each code from subcategory M84.6:
Related codes in M84.66
Frequently asked questions
What is ICD-10 code M84.661?
M84.661 is the ICD-10-CM code for pathological fracture in other disease, right tibia, in the block M80-M85 (Disorders of bone density and structure).
Is M84.661 a billable code?
No. M84.661 is a header code with more specific child codes; report one of the billable codes listed above.
What category does M84.661 belong to?
It belongs to category M84 – Disorder of continuity of bone.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.