2026 ICD-10-CM Diagnosis Code M84.576SPathological fracture in neoplastic disease, unspecified foot, sequela
ICD-10-CM Codes›M00–M99›M80-M85›M84
- Billable — Valid for Submission
- 7th Character S — Sequela
- Chronic Condition
M84.576S is a billable ICD-10-CM diagnosis code for pathological fracture in neoplastic disease, unspecified foot, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. 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 bone of foot at site of neoplasm. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pathological, stress and atypical fractures, sequela.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Pathologic fracture of bone of foot at site of neoplasm
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Foot Injuries and Disorders
Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:
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Convert M84.576S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M84.576SOverview
Is M84.576S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report pathological fracture in neoplastic disease, unspecified foot, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in M84.576S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the pathological fracture in neoplastic disease, unspecified foot itself has resolved, not the original event.
What MS-DRG does M84.576S group to?
When pathological fracture in neoplastic disease, unspecified foot, sequela 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 M84.576S?
Under the General Equivalence Mappings, pathological fracture in neoplastic disease, unspecified foot, sequela converts to ICD-9-CM 905.4 (late effect leg fx). 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.
