ICD-10-CM Codes
Z00-Z99 Factors influencing health status and contact with health services
Z16-Z16 Resistance to antimicrobial drugs
Z16- Resistance to antimicrobial drugs

2018 ICD-10-CM Diagnosis Code Z16.20

Resistance to unspecified antibiotic

2016

2017

2018

Billable/Specific Code

Z16.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2018 edition of ICD-10-CM Z16.20 became effective on October 1, 2017.
This is the American ICD-10-CM version of Z16.20 - other international versions of ICD-10 Z16.20 may differ.

Applicable To

Resistance to antibiotics NOS

The following code(s) above Z16.20 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 Z16.20:

Z00-Z99
2018 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
Z16
ICD-10-CM Diagnosis Code Z16
Resistance to antimicrobial drugs
Code First
- the infection
Note
- The codes in this category are provided for use as additional codes to identify the resistance and non-responsiveness of a condition to antimicrobial drugs.
Type 1 Excludes
- Methicillin resistant Staphylococcus aureus infection (A49.02)
- Methicillin resistant Staphylococcus aureus pneumonia (J15.212)
- Sepsis due to Methicillin resistant Staphylococcus aureus (A41.02)
Resistance to antimicrobial drugs

Clinical Information

The mechanisms, functions, activities, or processes exhibited by microorganisms, especially bacteria, to resist or to become tolerant to antibiotics.

ICD-10-CM Z16.20 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

867 Other infectious and parasitic diseases diagnoses with mcc
868 Other infectious and parasitic diseases diagnoses with cc
869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert Z16.20 to ICD-9-CM

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

Diagnosis Index entries containing back-references to Z16.20:

Resistance, resistant (to)
- organism(s)
  - to
    - drug Z16.30
      ICD-10-CM Diagnosis Code Z16.30
      Resistance to unspecified antimicrobial drugs
      2016 2017 2018 Billable/Specific Code
      Applicable To
      Drug resistance NOS
      - antibiotic(s) Z16.20

ICD-10-CM Codes Adjacent To Z16.20

Z15.8 Genetic susceptibility to other disease

Z15.81 Genetic susceptibility to multiple endocrine neoplasia [MEN]

Z15.89 Genetic susceptibility to other disease

Z16 Resistance to antimicrobial drugs

Z16.1 Resistance to beta lactam antibiotics

Z16.10 Resistance to unspecified beta lactam antibiotics

Z16.11 Resistance to penicillins

Z16.12 Extended spectrum beta lactamase (ESBL) resistance

Z16.19 Resistance to other specified beta lactam antibiotics

Z16.2 Resistance to other antibiotics

Z16.20 Resistance to unspecified antibiotic

Z16.21 Resistance to vancomycin

Z16.22 Resistance to vancomycin related antibiotics

Z16.23 Resistance to quinolones and fluoroquinolones

Z16.24 Resistance to multiple antibiotics

Z16.29 Resistance to other single specified antibiotic

Z16.3 Resistance to other antimicrobial drugs

Z16.30 Resistance to unspecified antimicrobial drugs

Z16.31 Resistance to antiparasitic drug(s)

Z16.32 Resistance to antifungal drug(s)

Z16.33 Resistance to antiviral drug(s)

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

2018 ICD-10-CM Diagnosis Code Z16.20

Resistance to unspecified antibiotic

Factors influencing health status and contact with health services

Resistance to antimicrobial drugs

Resistance to unspecified antimicrobial drugs