Category · FY2027
T46 Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
- Header · not billable
- Codes take a 7th character
T46 is not billable. The category heads 198 billable codes in FY2027, grouped under 10 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.
Where it sits
- Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
- T36-T50 Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
- T46 Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
- Billable codes
- 198
- Subdivisions
- 10
- CC / MCC codes
- 0 / 0
- HCC V28 codes
- 11
- New FY2027
- 0
- Index entries
- 0
Codes in T46
- T46.0Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar actionHeader
- T46.0XPoisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar actionHeader
- T46.0X1Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by cardiac-stimulant glycosides and drugs of similar action NOS
- T46.0X2Poisoning by cardiac-stimulant glycosides and drugs of similar action, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.0X3Poisoning by cardiac-stimulant glycosides and drugs of similar action, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.0X4Poisoning by cardiac-stimulant glycosides and drugs of similar action, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.0X5Adverse effect of cardiac-stimulant glycosides and drugs of similar action +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.0X6Underdosing of cardiac-stimulant glycosides and drugs of similar action +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.1Poisoning by, adverse effect of and underdosing of calcium-channel blockersHeader
- T46.1XPoisoning by, adverse effect of and underdosing of calcium-channel blockersHeader
- T46.1X1Poisoning by calcium-channel blockers, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by calcium-channel blockers NOS
- T46.1X2Poisoning by calcium-channel blockers, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.1X3Poisoning by calcium-channel blockers, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.1X4Poisoning by calcium-channel blockers, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.1X5Adverse effect of calcium-channel blockers +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.1X6Underdosing of calcium-channel blockers +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.2Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classifiedHeader
Excludes1 1
Excludes1
- poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists (T44.7-) T44.7
- T46.2XPoisoning by, adverse effect of and underdosing of other antidysrhythmic drugsHeader
- T46.2X1Poisoning by other antidysrhythmic drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by other antidysrhythmic drugs NOS
- T46.2X2Poisoning by other antidysrhythmic drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.2X3Poisoning by other antidysrhythmic drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.2X4Poisoning by other antidysrhythmic drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.2X5Adverse effect of other antidysrhythmic drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.2X6Underdosing of other antidysrhythmic drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.3Poisoning by, adverse effect of and underdosing of coronary vasodilatorsHeader
Inclusion terms 1, Excludes1 2
Inclusion terms
- Poisoning by, adverse effect of and underdosing of dipyridamole
Excludes1
- poisoning by, adverse effect of and underdosing of
- calcium-channel blockers (T46.1) T46.1
- T46.3XPoisoning by, adverse effect of and underdosing of coronary vasodilatorsHeader
- T46.3X1Poisoning by coronary vasodilators, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by coronary vasodilators NOS
- T46.3X2Poisoning by coronary vasodilators, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.3X3Poisoning by coronary vasodilators, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.3X4Poisoning by coronary vasodilators, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.3X5Adverse effect of coronary vasodilators +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.3X6Underdosing of coronary vasodilators +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.4Poisoning by, adverse effect of and underdosing of angiotensin-converting-enzyme inhibitorsHeader
- T46.4XPoisoning by, adverse effect of and underdosing of angiotensin-converting-enzyme inhibitorsHeader
- T46.4X1Poisoning by angiotensin-converting-enzyme inhibitors, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by angiotensin-converting-enzyme inhibitors NOS
- T46.4X2Poisoning by angiotensin-converting-enzyme inhibitors, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.4X3Poisoning by angiotensin-converting-enzyme inhibitors, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.4X4Poisoning by angiotensin-converting-enzyme inhibitors, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.4X5Adverse effect of angiotensin-converting-enzyme inhibitors +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.4X6Underdosing of angiotensin-converting-enzyme inhibitors +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.5Poisoning by, adverse effect of and underdosing of other antihypertensive drugsHeader
- T46.5XPoisoning by, adverse effect of and underdosing of other antihypertensive drugsHeader
- T46.5X1Poisoning by other antihypertensive drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by other antihypertensive drugs NOS
- T46.5X2Poisoning by other antihypertensive drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.5X3Poisoning by other antihypertensive drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.5X4Poisoning by other antihypertensive drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.5X5Adverse effect of other antihypertensive drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.5X6Underdosing of other antihypertensive drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.6Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugsHeader
- T46.6XPoisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugsHeader
- T46.6X1Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by antihyperlipidemic and antiarteriosclerotic drugs NOS
- T46.6X2Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.6X3Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.6X4Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.6X5Adverse effect of antihyperlipidemic and antiarteriosclerotic drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.6X6Underdosing of antihyperlipidemic and antiarteriosclerotic drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.7Poisoning by, adverse effect of and underdosing of peripheral vasodilatorsHeader
Inclusion terms 1, Excludes1 1
Inclusion terms
- Poisoning by, adverse effect of and underdosing of nicotinic acid (derivatives)
Excludes1
- poisoning by, adverse effect of and underdosing of papaverine (T44.3) T44.3
- T46.7XPoisoning by, adverse effect of and underdosing of peripheral vasodilatorsHeader
- T46.7X1Poisoning by peripheral vasodilators, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by peripheral vasodilators NOS
- T46.7X2Poisoning by peripheral vasodilators, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.7X3Poisoning by peripheral vasodilators, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.7X4Poisoning by peripheral vasodilators, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.7X5Adverse effect of peripheral vasodilators +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.7X6Underdosing of peripheral vasodilators +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.8Poisoning by, adverse effect of and underdosing of antivaricose drugs, including sclerosing agentsHeader
- T46.8XPoisoning by, adverse effect of and underdosing of antivaricose drugs, including sclerosing agentsHeader
- T46.8X1Poisoning by antivaricose drugs, including sclerosing agents, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by antivaricose drugs, including sclerosing agents NOS
- T46.8X2Poisoning by antivaricose drugs, including sclerosing agents, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.8X3Poisoning by antivaricose drugs, including sclerosing agents, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.8X4Poisoning by antivaricose drugs, including sclerosing agents, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.8X5Adverse effect of antivaricose drugs, including sclerosing agents +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.8X6Underdosing of antivaricose drugs, including sclerosing agents +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.9Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily affecting the cardiovascular systemHeader
- T46.90Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the cardiovascular systemHeader
- T46.901Poisoning by unspecified agents primarily affecting the cardiovascular system, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.902Poisoning by unspecified agents primarily affecting the cardiovascular system, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.903Poisoning by unspecified agents primarily affecting the cardiovascular system, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.904Poisoning by unspecified agents primarily affecting the cardiovascular system, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.905Adverse effect of unspecified agents primarily affecting the cardiovascular system +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.906Underdosing of unspecified agents primarily affecting the cardiovascular system +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.99Poisoning by, adverse effect of and underdosing of other agents primarily affecting the cardiovascular systemHeader
- T46.991Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.992Poisoning by other agents primarily affecting the cardiovascular system, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T46.993Poisoning by other agents primarily affecting the cardiovascular system, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.994Poisoning by other agents primarily affecting the cardiovascular system, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.995Adverse effect of other agents primarily affecting the cardiovascular system +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T46.996Underdosing of other agents primarily affecting the cardiovascular system +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.
Instructions
At T46
Excludes1
- poisoning by, adverse effect of and underdosing of metaraminol (T44.4) T44.4
Notes that also apply
Block T36-T50 instructions (Notes 1, Includes 4, Excludes1 1, Excludes2 5, Code first 7, Use additional code 4): printed on the block page.
Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.
7th characters
7th characters for T46 defined here
The appropriate 7th character is to be added to each code from category T46
| 7th | Meaning (NCHS) |
|---|---|
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.