R18.8
BillableOther ascites
Other ascites
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Ascites NOS
- Peritoneal effusion (chronic)
Includes
Conditions included under this code
- fluid in peritoneal cavity
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
- congenital or infantile pylorospasm (Q40.0)
- gastrointestinal hemorrhage (K92.0-K92.2)
- intestinal obstruction (K56.-)
- newborn gastrointestinal hemorrhage (P54.0-P54.3)
- newborn intestinal obstruction (P76.-)
- pylorospasm (K31.3)
- signs and symptoms involving the urinary system (R30-R39)
- symptoms referable to female genital organs (N94.-)
- symptoms referable to male genital organs (N48-N50)
Also Known As / Clinical Terms
SNOMED CT
- Dialysis-associated ascites12963004
- Bile ascites18037001
- Urine ascites26170003
- Uroabdomen26170003
- Pancreatic ascites53067009
- Demons-Meigs syndrome63402005
- Meigs syndrome63402005
- Meigs' syndrome63402005
- Meigs-Cass syndrome63402005
- Ovarian-ascites-pleural effusion syndrome63402005
- Haemorrhagic ascites71603004
- Hemorrhagic ascites71603004
- Urine ascites of the neonate75205009
- Chronic peritoneal effusion78609007
- Fluid-filled abdomen93457003
- Fluid-filled abdominal cavity93457003
- Bloody peritoneal effusion95554005
- Leakage of bile235931005
- Ascites co-occurrent and due to hepatic disorder236004002
- Hepatic ascites236004002
- Hypoalbuminaemic ascites236006000
- Hypoalbuminemic ascites236006000
- Metabolic ascites236006000
- Fluid in peritoneal cavity271861000
- Infected ascites307311001
- Ascites389026000
- Hydroperitoneum389026000
- Hydroperitonia389026000
- Hydrops abdominis389026000
- Haemorrhage into peritoneal cavity443826006
- Hemorrhage into peritoneal cavity443826006
- Intraabdominal haemorrhage443826006
- Intraabdominal hemorrhage443826006
- Intraperitoneal haemorrhage443826006
- Intraperitoneal hemorrhage443826006
- Tense ascites470757009
- Refractory ascites470758004
UMLS
- Accumulation of fluid in the abdomenC0003962
- AscitesC0003962
- Ascites (disorder)C0003962
- Ascites NOSC0003962
- HydroperitoneumC0003962
- HydroperitoniaC0003962
- Hydrops abdominisC0003962
- abdominal dropsyC0003962
- ascitesC0003962
- hydroperitoneumC0003962
- hydroperitoniaC0003962
- hydrops abdominisC0003962
- peritoneal dropsyC0003962
- peritoneal exudateC0003962
- Chronic Peritoneal EffusionC0031144
- Chronic peritoneal effusionC0031144
- Chronic peritoneal effusion (disorder)C0031144
- Peritoneal effusion (chronic)C0031144
- Other ascitesC1955521
Frequently Asked Questions
What is ICD-10 code R18.8?
ICD-10-CM code R18.8 represents "Other ascites". It is a billable/specific code that can be used on a claim.
Is R18.8 a billable code?
Yes, R18.8 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is R18.8 in?
R18.8 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).
What codes cannot be used with R18.8?
R18.8 has Excludes1 notes indicating codes that cannot be used together with it, including: ascites in alcoholic cirrhosis (K70.31); ascites in alcoholic hepatitis (K70.11); ascites in toxic liver disease with chronic active hepatitis (K71.51).
What SNOMED CT codes does R18.8 map to?
R18.8 maps to 19 SNOMED CT concepts: 26170003, 389026000, 236004002, 18037001, 95554005, and 14 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for R18.8?
R18.8 is linked to 3 UMLS Concept Unique Identifiers: C0003962, C0031144, C1955521. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.