DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

T55 Toxic effect of soaps and detergents

  • Header · not billable
  • Codes take a 7th character

T55 is not billable. The category heads 24 billable codes in FY2027, grouped under 2 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. T51-T65 Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
  3. T55 Toxic effect of soaps and detergents
Billable codes
24
Subdivisions
2
CC / MCC codes
0 / 0
HCC V28 codes
2
New FY2027
0
Index entries
0

Codes in T55

  1. T55.0
    Toxic effect of soaps
    Header
  2. T55.0X
    Toxic effect of soaps
    Header
  3. T55.0X1
    Toxic effect of soaps, accidental (unintentional) +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Toxic effect of soaps NOS
  4. T55.0X2
    Toxic effect of soaps, intentional self-harm +7th: A D S
    Needs 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
  5. T55.0X3
    Toxic effect of soaps, assault +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  6. T55.0X4
    Toxic effect of soaps, undetermined +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  7. T55.1
    Toxic effect of detergents
    Header
  8. T55.1X
    Toxic effect of detergents
    Header
  9. T55.1X1
    Toxic effect of detergents, accidental (unintentional) +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Toxic effect of detergents NOS
  10. T55.1X2
    Toxic effect of detergents, intentional self-harm +7th: A D S
    Needs 7th character155 (some 7th characters)Exempt: 2 of 3 7th characters
  11. T55.1X3
    Toxic effect of detergents, assault +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  12. T55.1X4
    Toxic effect of detergents, undetermined +7th: A D S
    Needs 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

Notes that also apply

Block T51-T65 instructions (Notes 1, Excludes1 1, 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 T55 defined here

The appropriate 7th character is to be added to each code from category T55

7th characters for T55
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

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.

Hierarchy