Code Information

  • Diagnosis Code: R18
  • Short Description: Ascites
  • Long Description: Ascites
  • Code Version: 2025 ICD-10-CM

The code R18 is NOT VALID for claim submission

Code Classification

References to Index of Diseases and Injuries

The code R18 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Includes Notes:
    • fluid in peritoneal cavity
  • Type 1 Excludes Notes:
    • ascites in alcoholic cirrhosis (@K70.31*)
    • ascites in alcoholic hepatitis (@K70.11*)
    • ascites in toxic liver disease with chronic active hepatitis (@K71.51*)

Similar Codes

ICD-10 Code ICD-10 Description
R18.0 Malignant ascites
R18.8 Other ascites
This page was last updated on: 10/1/2025