2026 ICD-10-CM Diagnosis Code M84.671DPathological fracture in other disease, right ankle, subsequent encounter for fracture with routine healing
M84.671D is a billable ICD-10-CM diagnosis code for pathological fracture in other disease, right ankle, subsequent encounter for fracture with routine healing. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 559 through 561. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pathological fracture, subsequent encounter.
Code Identity
Code Classification
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Ankle Injuries and Disorders
Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another, stabilize and support it. Your muscles and tendons move it.
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Convert M84.671D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M84.671DOverview
Is M84.671D (Pathological fracture in other disease, right ankle) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report pathological fracture in other disease, right ankle, subsequent encounter for fracture with routine healing on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in M84.671D mean?
The final character D marks a subsequent encounter: use it for routine care while the pathological fracture in other disease, right ankle is healing, after active treatment has ended.
What MS-DRG does M84.671D group to?
When pathological fracture in other disease, right ankle, subsequent encounter for fracture with routine healing is the principal diagnosis on an inpatient stay, it groups to MS-DRG 559, 560, 561, with relative weights from 0.8039 to 1.8649 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of M84.671D?
Under the General Equivalence Mappings, pathological fracture in other disease, right ankle, subsequent encounter for fracture with routine healing converts to ICD-9-CM V54.26 (aftrcare path fx low leg). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
