T50.Z16A ICD-10-CM Code: Underdosing of immunoglobulin, initial encounter
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
T50.Z16AUnderdosing of immunoglobulin, initial encounter
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where T50.Z16A sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
- 3
Category T50
Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
- 4
Subcategory T50.Z16
Underdosing of immunoglobulin
- 5
Code T50.Z16A
Underdosing of immunoglobulin, initial encounter
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for T50.Z16A.
Code first
No “code first” instruction is listed for T50.Z16A.
Use additional code
No “use additional code” instruction is listed for T50.Z16A.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for T50.Z16A.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for T50.Z16A.
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 T50.Z16A mean?
T50.Z16A is the FY 2027 U.S. ICD-10-CM code for “Underdosing of immunoglobulin, initial encounter.”
Is T50.Z16A a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, T50.Z16A 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 T50.Z16A located in ICD-10-CM?
T50.Z16A is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) (T36–T50), under category T50, Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances and subcategory T50.Z16, Underdosing of immunoglobulin.
What coding notes are listed for T50.Z16A?
No inclusion terms are listed for T50.Z16A in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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