DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

X34 Earthquake

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

X34 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.

Where it sits

  1. Chapter 20 External causes of morbidity (V00-Y99)
  2. X30-X39 Exposure to forces of nature (X30-X39)
  3. X34 Earthquake
Billable codes
3
Subdivisions
0
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in X34

  1. X34.XXXA
    Earthquake, initial encounter
    Billable
  2. X34.XXXD
    Earthquake, subsequent encounter
    BillableExempt
  3. X34.XXXS
    Earthquake, sequela
    BillableExempt

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 X34

Excludes2

  • tidal wave (tsunami) due to earthquake (X37.41) X37.41

Notes that also apply

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

7th characters

7th characters for X34 defined here

The appropriate 7th character is to be added to code X34

7th characters for X34
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