DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

X17 Contact with hot engines, machinery and tools

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

X17 is not billable. The category heads 3 billable codes in FY2027. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Billable codes
3
Subdivisions
0
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in X17

  1. X17.XXXA
    Contact with hot engines, machinery and tools, initial encounter
    Billable
  2. X17.XXXD
    Contact with hot engines, machinery and tools, subsequent encounter
    Billable
  3. X17.XXXS
    Contact with hot engines, machinery and tools, sequela
    Billable

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 X17

Excludes1

  • contact with hot heating appliances, radiators and pipes (X16) X16
  • contact with hot household appliances (X15) X15

Notes that also apply

Block X10-X19 instructions (Excludes1 2): printed on the block page.

Chapter 20 instructions (Notes 1): printed on the chapter 20 page.

7th characters

7th characters for X17 defined here

The appropriate 7th character is to be added to code X17

7th characters for X17
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