Category · FY2027
T37 Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics
- Header · not billable
- Codes take a 7th character
T37 is not billable. The category heads 144 billable codes in FY2027, grouped under 8 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)
- T37 Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics
- Billable codes
- 144
- Subdivisions
- 8
- CC / MCC codes
- 0 / 0
- HCC V28 codes
- 8
- New FY2027
- 0
- Index entries
- 0
Codes in T37
- T37.0Poisoning by, adverse effect of and underdosing of sulfonamidesHeader
- T37.0XPoisoning by, adverse effect of and underdosing of sulfonamidesHeader
- T37.0X1Poisoning by sulfonamides, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by sulfonamides NOS
- T37.0X2Poisoning by sulfonamides, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.0X3Poisoning by sulfonamides, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.0X4Poisoning by sulfonamides, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.0X5Adverse effect of sulfonamides +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.0X6Underdosing of sulfonamides +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.1
- T37.1XPoisoning by, adverse effect of and underdosing of antimycobacterial drugsHeader
- T37.1X1Poisoning by antimycobacterial drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by antimycobacterial drugs NOS
- T37.1X2Poisoning by antimycobacterial drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.1X3Poisoning by antimycobacterial drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.1X4Poisoning by antimycobacterial drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.1X5Adverse effect of antimycobacterial drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.1X6Underdosing of antimycobacterial drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.2Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoaHeader
Excludes1 1
Excludes1
- hydroxyquinoline derivatives (T37.8-) T37.8
- T37.2XPoisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoaHeader
- T37.2X1Poisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by antimalarials and drugs acting on other blood protozoa NOS
- T37.2X2Poisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.2X3Poisoning by antimalarials and drugs acting on other blood protozoa, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.2X4Poisoning by antimalarials and drugs acting on other blood protozoa, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.2X5Adverse effect of antimalarials and drugs acting on other blood protozoa +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.2X6Underdosing of antimalarials and drugs acting on other blood protozoa +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.3Poisoning by, adverse effect of and underdosing of other antiprotozoal drugsHeader
- T37.3XPoisoning by, adverse effect of and underdosing of other antiprotozoal drugsHeader
- T37.3X1Poisoning by other antiprotozoal drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by other antiprotozoal drugs NOS
- T37.3X2Poisoning by other antiprotozoal drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.3X3Poisoning by other antiprotozoal drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.3X4Poisoning by other antiprotozoal drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.3X5Adverse effect of other antiprotozoal drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.3X6Underdosing of other antiprotozoal drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.4Poisoning by, adverse effect of and underdosing of anthelminthicsHeader
- T37.4XPoisoning by, adverse effect of and underdosing of anthelminthicsHeader
- T37.4X1Poisoning by anthelminthics, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by anthelminthics NOS
- T37.4X2Poisoning by anthelminthics, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.4X3Poisoning by anthelminthics, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.4X4Poisoning by anthelminthics, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.4X5Adverse effect of anthelminthics +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.4X6Underdosing of anthelminthics +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.5
- T37.5XPoisoning by, adverse effect of and underdosing of antiviral drugsHeader
- T37.5X1Poisoning by antiviral drugs, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by antiviral drugs NOS
- T37.5X2Poisoning by antiviral drugs, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.5X3Poisoning by antiviral drugs, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.5X4Poisoning by antiviral drugs, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.5X5Adverse effect of antiviral drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.5X6Underdosing of antiviral drugs +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.8Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasiticsHeader
Inclusion terms 1, Excludes1 1
Inclusion terms
- Poisoning by, adverse effect of and underdosing of hydroxyquinoline derivatives
Excludes1
- antimalarial drugs (T37.2-) T37.2
- T37.8XPoisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasiticsHeader
- T37.8X1Poisoning by other specified systemic anti-infectives and antiparasitics, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by other specified systemic anti-infectives and antiparasitics NOS
- T37.8X2Poisoning by other specified systemic anti-infectives and antiparasitics, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.8X3Poisoning by other specified systemic anti-infectives and antiparasitics, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.8X4Poisoning by other specified systemic anti-infectives and antiparasitics, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.8X5Adverse effect of other specified systemic anti-infectives and antiparasitics +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.8X6Underdosing of other specified systemic anti-infectives and antiparasitics +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.9Poisoning by, adverse effect of and underdosing of unspecified systemic anti-infective and antiparasiticsHeader
- T37.91Poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional) +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
Inclusion terms 1
Inclusion terms
- Poisoning by, adverse effect of and underdosing of systemic anti-infective and antiparasitics NOS
- T37.92Poisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm +7th: A D SNeeds 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
- T37.93Poisoning by unspecified systemic anti-infective and antiparasitics, assault +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.94Poisoning by unspecified systemic anti-infective and antiparasitics, undetermined +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.95Adverse effect of unspecified systemic anti-infective and antiparasitic +7th: A D SNeeds 7th characterExempt: 2 of 3 7th characters
- T37.96Underdosing of unspecified systemic anti-infectives and antiparasitics +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 T37
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 T37 defined here
The appropriate 7th character is to be added to each code from category T37
| 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.