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B77

Non-billable

Ascariasis

B77 is the ICD-10-CM code for Ascariasis. It is a non-billable category code — use a more specific child code such as B77.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
3
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not. Parasites range in size from tiny, one-celled organisms called protozoa to worms that can be seen with the naked eye. Some parasitic diseases occur in the United States.…

Read more about Parasitic Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •ascaridiasis
  • •roundworm infection

Frequently asked questions

What is ICD-10 code B77?
B77 is the ICD-10-CM code for "Ascariasis". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B77 a billable code?
No — B77 is a non-billable header code. Use a more specific child code (such as B77.0) for billing.
What are the subcodes of B77?
B77 has 3 more specific child codes, including B77.0, B77.8, B77.9.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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