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ICD-10-CM
R00-R99
R10-R19
R18
R18.0
R18.0
2026
Billable
Malignant ascites
Clinical Notes
Code First
3
Sequence another code first
malignancy, such as:
malignant neoplasm of ovary (
C56
.-)
secondary malignant neoplasm of retroperitoneum and peritoneum (
C78.6
)
FAQ
Is R18.0 a billable ICD-10 code?
What does ICD-10 code R18.0 mean?
What is the parent category for ICD-10 code R18.0?
Related Codes
Collapse
R18
Ascites
R18.0
Malignant ascites
R18.8
Other ascites
Show Notes
2026