R18.0
BillableMalignant ascites
R18.0 is the ICD-10-CM code for Malignant ascites. It is a billable, specific code valid for reimbursement.
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
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Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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