ICD-10-CM Diagnosis Code (2025)
Official Description for Z77.121
Contact with and (suspected) exposure to harmful algae and algae toxins
Coding Notes & Guidelines for Z77.121
Inclusion Terms
- Contact with and (suspected) exposure to (harmful) algae bloom NOS
- Contact with and (suspected) exposure to blue-green algae bloom
- Contact with and (suspected) exposure to brown tide
- Contact with and (suspected) exposure to cyanobacteria bloom
- Contact with and (suspected) exposure to Florida red tide
- Contact with and (suspected) exposure to pfiesteria piscicida
- Contact with and (suspected) exposure to red tide
Parent Code (Less Specific):
About ICD-10-CM Code Z77.121 (Contact with and)
ICD-10-CM code Z77.121 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z77.121 became effective on October 1, 2024.
This page provides detailed information about Z77.121 - Contact with and (suspected) exposure to harmful algae and algae toxins. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Contact with and.