Z16.31 ICD-10-CM Code: Resistance to antiparasitic drug(s)
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Z16.31Resistance to antiparasitic drug(s)
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Z16.31 sits
- 1
Chapter 21
Factors influencing health status and contact with health services (Z00-Z99)
- 2
Section
Resistance to antimicrobial drugs (Z16)
- 3
Category Z16
Resistance to antimicrobial drugs
- 4
Subcategory Z16.3
Resistance to other antimicrobial drugs
- 5
Code Z16.31
Resistance to antiparasitic drug(s)
Documentation details
Notes for this code
Inclusion terms
- Resistance to quinine and related compounds
Code first
No “code first” instruction is listed for Z16.31.
Use additional code
No “use additional code” instruction is listed for Z16.31.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Z16.31.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Z16.31.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Z16.31 mean?
Z16.31 is the FY 2027 U.S. ICD-10-CM code for “Resistance to antiparasitic drug(s).”
Is Z16.31 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Z16.31 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Z16.31 located in ICD-10-CM?
Z16.31 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Resistance to antimicrobial drugs (Z16) (Z16–Z16), under category Z16, Resistance to antimicrobial drugs and subcategory Z16.3, Resistance to other antimicrobial drugs.
What coding notes are listed for Z16.31?
Its listed inclusion terms are Resistance to quinine and related compounds. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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