DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Z18 Retained foreign body fragments

  • Header · not billable

Z18 is not billable. The category heads 14 billable codes in FY2027, grouped under 6 subdivisions.

Index → code

  • Retainedfragments (type of ) → Z18.9
  • Retainedforeign body fragments (type of) → Z18.9
  • Retainedfragments (type of )wood → Z18.33

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z18 Retained foreign body fragments (Z18)
  3. Z18 Retained foreign body fragments
Billable codes
14
Subdivisions
6
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
48

Codes in Z18

  1. Z18.0
    Retained radioactive fragments
    Header
  2. Z18.01
    Retained depleted uranium fragments
    BillableExempt
  3. Z18.09
    Other retained radioactive fragments
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Other retained depleted isotope fragments
    • Retained nontherapeutic radioactive fragments
  4. Z18.1
    Retained metal fragments
    Header
    Excludes1 1

    Excludes1

    • retained radioactive metal fragments (Z18.01-Z18.09) Z18.01 Z18.09
  5. Z18.10
    Retained metal fragments, unspecified
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Retained metal fragment NOS
  6. Z18.11
    Retained magnetic metal fragments
    BillableExempt
  7. Z18.12
    Retained nonmagnetic metal fragments
    BillableExempt
  8. Z18.2
    Retained plastic fragments
    BillableExempt
    Inclusion terms 3

    Inclusion terms

    • Acrylics fragments
    • Diethylhexyl phthalates fragments
    • Isocyanate fragments
  9. Z18.3
    Retained organic fragments
    Header
  10. Z18.31
    Retained animal quills or spines
    BillableExempt
  11. Z18.32
    Retained tooth
    BillableExempt
  12. Z18.33
    Retained wood fragments
    BillableExempt
  13. Z18.39
    Other retained organic fragments
    BillableExempt
  14. Z18.8
    Other specified retained foreign body
    Header
  15. Z18.81
    Retained glass fragments
    BillableExempt
  16. Z18.83
    Retained stone or crystalline fragments
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Retained concrete or cement fragments
  17. Z18.89
    Other specified retained foreign body fragments
    BillableExempt
  18. Z18.9
    Retained foreign body fragments, unspecified material
    BillableExempt

Sources of each column.

Instructions

At Z18

Includes

  • embedded fragment (status)
  • embedded splinter (status)
  • retained foreign body status

Excludes1

  • artificial joint prosthesis status (Z96.6-) Z96.6
  • foreign body accidentally left during a procedure (T81.5-) T81.5
  • foreign body entering through orifice (T15-T19) T15 T19
  • in situ cardiac device (Z95.-) Z95
  • organ or tissue replaced by means other than transplant (Z96.-, Z97.-) Z96 Z97
  • organ or tissue replaced by transplant (Z94.-) Z94
  • personal history of retained foreign body fully removed Z87.821 Z87.821
  • superficial foreign body (non-embedded splinter) - code to superficial foreign body, by site

Notes that also apply

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • Retainedforeign body fragments (type of) → Z18.9
  • Retainedfragments (type of ) → Z18.9
  • Retainedforeign body fragments (type of)depleted uranium → Z18.01
  • Retainedfragments (type of )depleted uranium → Z18.01
  • Retainedforeign body fragments (type of)depleted isotope → Z18.09
  • Retainedforeign body fragments (type of)nontherapeutic radioactive → Z18.09
  • Retainedforeign body fragments (type of)radioactive (nontherapeutic) NEC → Z18.09
  • Retainedfragments (type of )depleted isotope → Z18.09
  • Retainedfragments (type of )nontherapeutic radioactive → Z18.09
  • Retainedfragments (type of )radioactive (nontherapeutic) NEC → Z18.09
  • Retainedforeign body fragments (type of)metal → Z18.10
  • Retainedfragments (type of )metal → Z18.10
  • Retainedforeign body fragments (type of)magnetic metal → Z18.11
  • Retainedfragments (type of )magnetic metal → Z18.11
  • Retainedforeign body fragments (type of)nonmagnectic metal → Z18.12
  • Retainedfragments (type of )nonmagnectic metal → Z18.12
  • Retainedforeign body fragments (type of)acrylics → Z18.2
  • Retainedforeign body fragments (type of)diethylhexyl phthalates → Z18.2
  • Retainedforeign body fragments (type of)isocyanate → Z18.2
  • Retainedforeign body fragments (type of)plastic → Z18.2
  • Retainedfragments (type of )acrylics → Z18.2
  • Retainedfragments (type of )diethylhexyl phthalates → Z18.2
  • Retainedfragments (type of )isocyanate → Z18.2
  • Retainedfragments (type of )plastic → Z18.2
  • Retainedforeign body fragments (type of)animal quill(s) or spines → Z18.31
  • Retainedforeign body fragments (type of)quill(s) (animal) → Z18.31
  • Retainedforeign body fragments (type of)spine(s) (animal) → Z18.31
  • Retainedfragments (type of )animal quill(s) or spines → Z18.31
  • Retainedfragments (type of )quill(s) (animal) → Z18.31
  • Retainedfragments (type of )spine(s) (animal) → Z18.31
  • Retainedforeign body fragments (type of)tooth (teeth) → Z18.32
  • Retainedfragments (type of )tooth (teeth) → Z18.32
  • Retainedforeign body fragments (type of)wood → Z18.33
  • Retainedfragments (type of )wood → Z18.33
  • Retainedforeign body fragments (type of)organic NEC → Z18.39
  • Retainedfragments (type of )organic NEC → Z18.39
  • Retainedforeign body fragments (type of)glass → Z18.81
  • Retainedfragments (type of )glass → Z18.81
  • Retainedforeign body fragments (type of)cement → Z18.83
  • Retainedforeign body fragments (type of)concrete → Z18.83

8 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.