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ICD-10-CM 2027

ICD-10 code for Cryptosporidiosis

A07.2

Cryptosporidiosis

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Cryptosporidiosis”. Page updated September 29, 2026.

About coding Cryptosporidiosis

The ICD-10-CM code for Cryptosporidiosis is A07.2 (Cryptosporidiosis). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A07.2.

Within A07 (other protozoal intestinal diseases), A07.2 is specifically for Cryptosporidiosis. Related codes cover Balantidiasis (A07.0), Giardiasis [lambliasis] (A07.1), Isosporiasis (A07.3), Cyclosporiasis (A07.4), other specified protozoal intestinal diseases (A07.8) and protozoal intestinal disease, unspecified (A07.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 371 (Major Gastrointestinal Disorders and Peritoneal Infections with MCC, relative weight 1.7089), DRG 372 (Major Gastrointestinal Disorders and Peritoneal Infections with CC, relative weight 0.9964) and DRG 373 (Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC, relative weight 0.6941), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific Cryptosporidiosis codes (official index)

  • hepatobiliary B88.8 — Other specified infestations
  • respiratory B88.8 — Other specified infestations

Common questions about Cryptosporidiosis ICD-10 codes

What is the ICD-10 code for Cryptosporidiosis?

A07.2 — Cryptosporidiosis. More specific codes apply when the documentation supports them: B88.8, B88.8.

What is the ICD-10 code for hepatobiliary cryptosporidiosis?

B88.8 — Other specified infestations.

What is the ICD-10 code for respiratory cryptosporidiosis?

B88.8 — Other specified infestations.

Is A07.2 billable?

Yes. A07.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can A07.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict A07.2 as a principal diagnosis.

Is A07.2 a CC or MCC?

A07.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.