DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

X52 Prolonged stay in weightless environment

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

X52 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 X52

  1. X52.XXXA
    Prolonged stay in weightless environment, initial encounter
    BillableExempt
  2. X52.XXXD
    Prolonged stay in weightless environment, subsequent encounter
    BillableExempt
  3. X52.XXXS
    Prolonged stay in weightless environment, 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 X52

Inclusion terms

  • Weightlessness in spacecraft (simulator)

Notes that also apply

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

7th characters

7th characters for X52 defined here

The appropriate 7th character is to be added to code X52

7th characters for X52
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