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T46.0X6

T46.0X6Underdosing of cardiac-stimulant glycosides and drugs of similar action

Non-billable headerICD-10-CM

T46.0X6 is a non-billable header ICD-10-CM code for underdosing of cardiac-stimulant glycosides and drugs of similar action. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T46

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above T46.0X6

These are not written on T46.0X6, but they bind it: a note on a category applies to every code beneath it. Billing T46.0X6 with anything listed here is a denial.

Written on T46 Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system

  • poisoning by, adverse effect of and underdosing of metaraminol (T44.4)

Risk adjustment

T46.0X6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

T46.0X6 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead T46.0X6

3 child codes. Green means billable.

Related codes at this level

Codes that share T46.0X. If T46.0X6 is not quite right, the correct code is usually one of these.

Questions about T46.0X6

Is T46.0X6 a billable ICD-10-CM code?
No. T46.0X6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T46.0X6 sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).
What cannot be coded together with T46.0X6?
T46.0X6 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above T46.0X6 (T46) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.