2026 ICD-10-CM Diagnosis Code M84.573DPathological fracture in neoplastic disease, unspecified ankle, subsequent encounter for fracture with routine healing
ICD-10-CM Codes›M00–M99›M80-M85›M84
- Billable — Valid for Submission
- 7th Character D — Subsequent Encounter
- Chronic Condition
M84.573D is a billable ICD-10-CM diagnosis code for pathological fracture in neoplastic disease, unspecified 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. Coders also document this condition as pathologic fracture of ankle at site of neoplasm. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pathological fracture, subsequent encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Pathologic fracture of ankle at site of neoplasm
- Pathological fracture of ankle
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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Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M84.573D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M84.573DOverview
Is M84.573D a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report pathological fracture in neoplastic disease, unspecified 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 M84.573D mean?
The final character D marks a subsequent encounter: use it for routine care while the pathological fracture in neoplastic disease, unspecified ankle is healing, after active treatment has ended.
What MS-DRG does M84.573D group to?
When pathological fracture in neoplastic disease, unspecified 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 M84.573D?
Under the General Equivalence Mappings, pathological fracture in neoplastic disease, unspecified 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] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
