B77
Non-billableAscariasis
Ascariasis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
- ascaridiasis
- roundworm infection
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Child Codes (3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(31)
UMLS
- AscariasesC0003950
- AscariasisC0003950
- Ascariasis (disorder)C0003950
- Ascariasis - roundwormsC0003950
- Ascariasis, unspecifiedC0003950
- AscariosisC0003950
- Ascaris InfectionC0003950
- Ascaris InfectionsC0003950
- Infection, AscarisC0003950
- Infections, AscarisC0003950
- ascariasisC0003950
- ascaridiasisC0003950
- ascariosisC0003950
- INFECT NEMATODEC0027583
- Infection caused by NematodaC0027583
- Infection caused by Nematoda (disorder)C0027583
- Infection, NematodeC0027583
- Infections, NematodeC0027583
- NEMATODE INFECTC0027583
- Nematode InfectionC0027583
- Nematode InfectionsC0027583
- Nematode infectionC0027583
- Nematode infectionsC0027583
- NematodiasisC0027583
- Roundworm infectionC0027583
- Roundworm infection NOSC0027583
- infections nematodeC0027583
- nematode infectionsC0027583
- nematodiasisC0027583
- roundwormC0027583
- roundworm infectionC0027583
Frequently Asked Questions
What is the ICD-10 code for ascariasis?
The ICD-10-CM code for ascariasis is B77. The full clinical description is "Ascariasis". B77 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code B77 mean?
ICD-10-CM code B77 represents “Ascariasis”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.
Is B77 a billable code?
No, B77 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under B77.
What chapter is B77 in?
B77 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with B77?
B77 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
What are the subcategories under B77?
B77 has 3 child codes, including: B77.0 (Ascariasis with intestinal complications), B77.8 (Ascariasis with other complications), B77.9 (Ascariasis, unspecified).
Are additional codes required with B77?
Yes, when using B77, also report: resistance to antimicrobial drugs (Z16.-).
What are the UMLS CUIs for B77?
B77 is linked to 2 UMLS Concept Unique Identifiers: C0003950, C0027583. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does B77 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like ascariasis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of B77?
B77 maps to the ICD-11 code: 1F62 (Ascariasis).
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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.