AutoICD API

R18.0

Billable

Malignant ascites

Malignant ascites

Status

Billable / Specific

Block

R10-R19

Parent Code

R18

Coding Notes

Includes

Conditions included under this code

  • fluid in peritoneal cavity

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

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

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)

Code First

The underlying condition must be sequenced before this code

  • malignancy, such as:
  • malignant neoplasm of ovary (C56.-)
  • secondary malignant neoplasm of retroperitoneum and peritoneum (C78.6)

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is ICD-10 code R18.0?

ICD-10-CM code R18.0 represents "Malignant ascites". It is a billable/specific code that can be used on a claim.

Is R18.0 a billable code?

Yes, R18.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R18.0 in?

R18.0 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R18.0?

R18.0 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 R18.0 map to?

R18.0 maps to 4 SNOMED CT concepts: 168011000, 168021008, 236005001, 442768008. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R18.0?

R18.0 is linked to 1 UMLS Concept Unique Identifier: C0220656. 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.