T56.1 ICD-10-CM Code: Toxic effects of mercury and its compounds
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
T56.1Toxic effects of mercury and its compounds
ICD-10-CM diagnosis code · United States clinical modification
Where T56.1 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
- 3
Category T56
Toxic effect of metals
- 4
Code T56.1
Toxic effects of mercury and its compounds
Codes under T56.1
T56.1 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for T56.1.
Code first
No “code first” instruction is listed for T56.1.
Use additional code
No “use additional code” instruction is listed for T56.1.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for T56.1.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for T56.1.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
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.
Frequently asked questions
What does ICD-10-CM code T56.1 mean?
T56.1 is the FY 2027 U.S. ICD-10-CM code for “Toxic effects of mercury and its compounds.”
Is T56.1 a billable or specific ICD-10-CM code?
No. T56.1 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is T56.1 located in ICD-10-CM?
T56.1 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Toxic effects of substances chiefly nonmedicinal as to source (T51-T65) (T51–T65), under category T56, Toxic effect of metals.
What coding notes are listed for T56.1?
No inclusion terms are listed for T56.1 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.