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M80.831K vs M80.832K

M80.831K (Other osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with nonunion) compared with M80.832K (Other osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with nonunion), from the official CMS tabular data. M80.831K and M80.832K code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M80.831K
Right
Other osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with nonunion
↔
M80.832K
Left
Other osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with nonunion

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. M80.831K and M80.832K name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

M80.831KOther osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with nonunionM80.832KOther osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with nonunion
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionOther osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (M80.831K).Other osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (M80.832K).
7th characterThe appropriate 7th character is to be added to each code from category M80:The appropriate 7th character is to be added to each code from category M80:
Includes
osteoporosis with current fragility fracture
osteoporosis with current fragility fracture
Use additional code
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
code to identify major osseous defect, if applicable (M89.7-)
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
code to identify major osseous defect, if applicable (M89.7-)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources