ICD-10-CM Codes
Z00-Z99
Z18-Z18
Z18-
2023 ICD-10-CM Diagnosis Code Z18

2023 ICD-10-CM Diagnosis Code Z18

Retained foreign body fragments

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

Z18 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM Z18 became effective on October 1, 2022.
This is the American ICD-10-CM version of Z18 - other international versions of ICD-10 Z18 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as Z18. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

artificial joint prosthesis status (
ICD-10-CM Diagnosis Code Z96.6
Presence of orthopedic joint implants
Z96.6-
)
foreign body accidentally left during a procedure (
ICD-10-CM Diagnosis Code T81.5
Complications of foreign body accidentally left in body following procedure
T81.5-
)
foreign body entering through orifice (T15-T19
ICD-10-CM Range T15-T19
Effects of foreign body entering through natural orifice
Type 2 Excludes
- foreign body accidentally left in operation wound (T81.5-)
- foreign body in penetrating wound - See open wound by body region
- residual foreign body in soft tissue (M79.5)
- splinter, without open wound - See superficial injury by body region
- T15 Foreign body on external eye
- T16 Foreign body in ear
- T17 Foreign body in respiratory tract
- T18 Foreign body in alimentary tract
- T19 Foreign body in genitourinary tract
)
in situ cardiac device (
ICD-10-CM Diagnosis Code Z95
- Z95 Presence of cardiac and vascular implants and...
  - Z95.0 Presence of cardiac pacemaker
  - Z95.1 Presence of aortocoronary bypass graft
  - Z95.2 Presence of prosthetic heart valve
  - Z95.3 Presence of xenogenic heart valve
  - Z95.4 Presence of other heart-valve replacement
  - Z95.5 Presence of coronary angioplasty implant and ...
  - Z95.8 Presence of other cardiac and vascular implan...
    - Z95.81 Presence of other cardiac implants and grafts...
      Z95.810 Presence of automatic (implantable) cardiac d...
      Z95.811 Presence of heart assist device
      Z95.812 Presence of fully implantable artificial hear...
      Z95.818 Presence of other cardiac implants and grafts...
    - Z95.82 Presence of other vascular implants and graft...
      Z95.820 Peripheral vascular angioplasty status with i...
      Z95.828 Presence of other vascular implants and graft...
  - Z95.9 Presence of cardiac and vascular implant and ...
Z95.-
)
organ or tissue replaced by means other than transplant (
ICD-10-CM Diagnosis Code Z96
- Z96 Presence of other functional implants
  - Z96.0 Presence of urogenital implants
  - Z96.1 Presence of intraocular lens
  - Z96.2 Presence of otological and audiological impla...
    - Z96.20 Presence of otological and audiological impla...
    - Z96.21 Cochlear implant status
    - Z96.22 Myringotomy tube(s) status
    - Z96.29 Presence of other otological and audiological...
  - Z96.3 Presence of artificial larynx
  - Z96.4 Presence of endocrine implants
    - Z96.41 Presence of insulin pump (external) (internal...
    - Z96.49 Presence of other endocrine implants
  - Z96.5 Presence of tooth-root and mandibular implant...
  - Z96.6 Presence of orthopedic joint implants
    - Z96.60 Presence of unspecified orthopedic joint impl...
    - Z96.61 Presence of artificial shoulder joint
      Z96.611 Presence of right artificial shoulder joint
      Z96.612 Presence of left artificial shoulder joint
      Z96.619 Presence of unspecified artificial shoulder j...
    - Z96.62 Presence of artificial elbow joint
      Z96.621 Presence of right artificial elbow joint
      Z96.622 Presence of left artificial elbow joint
      Z96.629 Presence of unspecified artificial elbow join...
    - Z96.63 Presence of artificial wrist joint
      Z96.631 Presence of right artificial wrist joint
      Z96.632 Presence of left artificial wrist joint
      Z96.639 Presence of unspecified artificial wrist join...
    - Z96.64 Presence of artificial hip joint
      Z96.641 Presence of right artificial hip joint
      Z96.642 Presence of left artificial hip joint
      Z96.643 …… bilateral
      Z96.649 Presence of unspecified artificial hip joint
    - Z96.65 Presence of artificial knee joint
      Z96.651 Presence of right artificial knee joint
      Z96.652 Presence of left artificial knee joint
      Z96.653 …… bilateral
      Z96.659 Presence of unspecified artificial knee joint...
    - Z96.66 Presence of artificial ankle joint
      Z96.661 Presence of right artificial ankle joint
      Z96.662 Presence of left artificial ankle joint
      Z96.669 Presence of unspecified artificial ankle join...
    - Z96.69 Presence of other orthopedic joint implants
      Z96.691 Finger-joint replacement of right hand
      Z96.692 Finger-joint replacement of left hand
      Z96.693 Finger-joint replacement, bilateral
      Z96.698 Presence of other orthopedic joint implants
  - Z96.7 Presence of other bone and tendon implants
  - Z96.8 Presence of other specified functional implan...
    - Z96.81 Presence of artificial skin
    - Z96.82 Presence of neurostimulator
    - Z96.89 Presence of other specified functional implan...
  - Z96.9 Presence of functional implant, unspecified
Z96.-
,
ICD-10-CM Diagnosis Code Z97
- Z97 Presence of other devices
  - Z97.0 Presence of artificial eye
  - Z97.1 Presence of artificial limb (complete) (parti...
    - Z97.10 Presence of artificial limb (complete) (parti...
    - Z97.11 Presence of artificial right arm (complete) (...
    - Z97.12 Presence of artificial left arm (complete) (p...
    - Z97.13 Presence of artificial right leg (complete) (...
    - Z97.14 Presence of artificial left leg (complete) (p...
    - Z97.15 Presence of artificial arms, bilateral (compl...
    - Z97.16 Presence of artificial legs, bilateral (compl...
  - Z97.2 Presence of dental prosthetic device (complet...
  - Z97.3 Presence of spectacles and contact lenses
  - Z97.4 Presence of external hearing-aid
  - Z97.5 Presence of (intrauterine) contraceptive devi...
  - Z97.8 Presence of other specified devices
Z97.-
)
organ or tissue replaced by transplant (
ICD-10-CM Diagnosis Code Z94
- Z94 Transplanted organ and tissue status
  - Z94.0 Kidney transplant status
  - Z94.1 Heart transplant status
  - Z94.2 Lung transplant status
  - Z94.3 Heart and lungs transplant status
  - Z94.4 Liver transplant status
  - Z94.5 Skin transplant status
  - Z94.6 Bone transplant status
  - Z94.7 Corneal transplant status
  - Z94.8 Other transplanted organ and tissue status
    - Z94.81 Bone marrow transplant status
    - Z94.82 Intestine transplant status
    - Z94.83 Pancreas transplant status
    - Z94.84 Stem cells transplant status
    - Z94.89 Other transplanted organ and tissue status
  - Z94.9 Transplanted organ and tissue status, unspeci...
Z94.-
)
personal history of retained foreign body fully removed
ICD-10-CM Diagnosis Code Z87.821
Personal history of retained foreign body fully removed
Z87.821
superficial foreign body (non-embedded splinter) - code to superficial foreign body, by site

Includes

Includes Help

"Includes" further defines, or give examples of, the content of the code or category.

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

The following code(s) above Z18 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to Z18:

Z00-Z99
2023 ICD-10-CM Range Z00-Z99
Factors influencing health status and contact with health services
Note
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Factors influencing health status and contact with health services

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to Z18:

Type 1 Excludes: Z03.82

ICD-10-CM Diagnosis Code Z03.82
Encounter for observation for suspected foreign body ruled out
Type 1 Excludes
- retained foreign body (Z18.-)
- retained foreign body in eyelid (H02.81)
- residual foreign body in soft tissue (M79.5)
Type 2 Excludes
- confirmed foreign body ingestion or aspiration including:
- foreign body in alimentary tract (T18)
- foreign body in ear (T16)
- foreign body on external eye (T15)
- foreign body in respiratory tract (T17)
Type 2 Excludes: Z77

ICD-10-CM Diagnosis Code Z77
Other contact with and (suspected) exposures hazardous to health
Includes
- contact with and (suspected) exposures to potential hazards to health
Type 2 Excludes
- contact with and (suspected) exposure to communicable diseases (Z20.-)
- exposure to (parental) (environmental) tobacco smoke in the perinatal period (P96.81)
- newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)
- occupational exposure to risk factors (Z57.-)
- retained foreign body (Z18.-)
- retained foreign body fully removed (Z87.821)
- toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
Use Additional: L92.3
, R78
, R79
, R82
, M60.2
, H02.81
, H05.5

ICD-10-CM Diagnosis Code L92.3
Foreign body granuloma of the skin and subcutaneous tissue
Use Additional
- code to identify the type of retained foreign body (Z18.-)
ICD-10-CM Diagnosis Code R78
Findings of drugs and other substances, not normally found in blood
Type 1 Excludes
- mental or behavioral disorders due to psychoactive substance use (F10-F19)
Use Additional
- code to identify the any retained foreign body, if applicable (Z18.-)
ICD-10-CM Diagnosis Code R79
Other abnormal findings of blood chemistry
Type 1 Excludes
- asymptomatic hyperuricemia (E79.0)
- hyperglycemia NOS (R73.9)
- hypoglycemia NOS (E16.2)
- neonatal hypoglycemia (P70.3-P70.4)
- specific findings indicating disorder of amino-acid metabolism (E70-E72)
- specific findings indicating disorder of carbohydrate metabolism (E73-E74)
- specific findings indicating disorder of lipid metabolism (E75.-)
Use Additional
- code to identify any retained foreign body, if applicable (Z18.-)
ICD-10-CM Diagnosis Code R82
Other and unspecified abnormal findings in urine
Includes
- chromoabnormalities in urine
Type 2 Excludes
- hematuria (R31.-)
Use Additional
- code to identify any retained foreign body, if applicable (Z18.-)
ICD-10-CM Diagnosis Code M60.2
Foreign body granuloma of soft tissue, not elsewhere classified
Type 1 Excludes
- foreign body granuloma of skin and subcutaneous tissue (L92.3)
Use Additional
- code to identify the type of retained foreign body (Z18.-)
ICD-10-CM Diagnosis Code H02.81
Retained foreign body in eyelid
Type 1 Excludes
- laceration of eyelid with foreign body (S01.12-)
- retained intraocular foreign body (H44.6-, H44.7-)
- superficial foreign body of eyelid and periocular area (S00.25-)
Use Additional
- code to identify the type of retained foreign body (Z18.-)
ICD-10-CM Diagnosis Code H05.5
Retained (old) foreign body following penetrating wound of orbit
Applicable To
- Retrobulbar foreign body
Type 1 Excludes
- current penetrating wound of orbit (S05.4-)
Type 2 Excludes
- retained foreign body of eyelid (H02.81-)
- retained intraocular foreign body (H44.6-, H44.7-)
Use Additional
- code to identify the type of retained foreign body (Z18.-)

ICD-10-CM Codes Adjacent To Z18

Z16.32 Resistance to antifungal drug(s)

Z16.33 Resistance to antiviral drug(s)

Z16.34 Resistance to antimycobacterial drug(s)

Z16.341 Resistance to single antimycobacterial drug

Z16.342 Resistance to multiple antimycobacterial drugs

Z16.35 Resistance to multiple antimicrobial drugs

Z16.39 Resistance to other specified antimicrobial drug

Z17 Estrogen receptor status

Z17.0 Estrogen receptor positive status [ER+]

Z17.1 Estrogen receptor negative status [ER-]

Z18 Retained foreign body fragments

Z18.0 Retained radioactive fragments

Z18.01 Retained depleted uranium fragments

Z18.09 Other retained radioactive fragments

Z18.1 Retained metal fragments

Z18.10 …… unspecified

Z18.11 Retained magnetic metal fragments

Z18.12 Retained nonmagnetic metal fragments

Z18.2 Retained plastic fragments

Z18.3 Retained organic fragments

Z18.31 Retained animal quills or spines

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code Z18

Retained foreign body fragments

Presence of orthopedic joint implants

Complications of foreign body accidentally left in body following procedure

Effects of foreign body entering through natural orifice

Personal history of retained foreign body fully removed

Factors influencing health status and contact with health services

Encounter for observation for suspected foreign body ruled out

Other contact with and (suspected) exposures hazardous to health

Foreign body granuloma of the skin and subcutaneous tissue

Findings of drugs and other substances, not normally found in blood

Other abnormal findings of blood chemistry

Other and unspecified abnormal findings in urine

Foreign body granuloma of soft tissue, not elsewhere classified

Retained foreign body in eyelid

Retained (old) foreign body following penetrating wound of orbit