Search Browse Crosswalk Fees Tools Pricing

Codelle

AI-powered medical coding assistant for healthcare practices and billers.

CPT® copyright 2026 American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association. Applicable FARS/DFARS restrictions apply to government use. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use.

ICD-10-CM R18 — Ascites | Codelle

ICD-10-CM/R18

R18

ICD-10-CM

Ascites

Clinical Notes

Includes

fluid in peritoneal cavity

Excludes 1 — Not coded here

ascites in alcoholic cirrhosis (K70.31)
ascites in alcoholic hepatitis (K70.11)
ascites in toxic liver disease with chronic active hepatitis (K71.51)

Code Hierarchy

Subcodes (2)

R18.0Malignant ascites

R18.8Other ascites

Same Category

R18.0Malignant ascites R18.8Other ascites