ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 18  /  R10-R19  /  R18
R18 Ascites
Includes fluid in peritoneal cavity
Excludes1 ascites in alcoholic cirrhosis (K70.31)
ascites in alcoholic hepatitis (K70.11)
ascites in toxic liver disease with chronic active hepatitis (K71.51)
R18.0 Malignant ascites
CodeFirst malignancy, such as:
malignant neoplasm of ovary (C56.-)
secondary malignant neoplasm of retroperitoneum and peritoneum (C78.6)
nonPrimary Yes
R18.8 Other ascites
Ascites NOS
Peritoneal effusion (chronic)