T46.7 — Poisoning by, adverse effect of and underdosing of peripheral vasodilators
T46.7 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of peripheral vasodilators. 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 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- poisoning by, adverse effect of and underdosing of papaverine (T44.3)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Poisoning by, adverse effect of and underdosing of nicotinic acid (derivatives)
Excludes1 inherited from the categories above T46.7
These are not written on T46.7, but they bind it: a note on a category applies to every code beneath it. Billing T46.7 with anything listed here is a denial.
Risk adjustment
T46.7 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
T46.7 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 T46.7
1 child code. Green means billable.
Related codes at this level
Codes that share T46. If T46.7 is not quite right, the correct code is usually one of these.
- T46.0Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar action
- T46.1Poisoning by, adverse effect of and underdosing of calcium-channel blockers
- T46.2Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classified
- T46.3Poisoning by, adverse effect of and underdosing of coronary vasodilators
- T46.4Poisoning by, adverse effect of and underdosing of angiotensin-converting-enzyme inhibitors
- T46.5Poisoning by, adverse effect of and underdosing of other antihypertensive drugs
- T46.6Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugs
- T46.8Poisoning by, adverse effect of and underdosing of antivaricose drugs, including sclerosing agents
- T46.9Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily affecting the cardiovascular system
Questions about T46.7
- Is T46.7 a billable ICD-10-CM code?
- No. T46.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T46.7 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 T46.7?
- T46.7 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 T46.7 (T46) and apply to it just the same.