-
ICD-10-CM Codes
›
-
A00-B99
›
-
A20-A28
›
-
A23-
›
-
2023 ICD-10-CM Diagnosis Code A23.9
2023 ICD-10-CM Diagnosis Code A23.9
Brucellosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- A23.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM A23.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A23.9 - other international versions of ICD-10 A23.9 may differ.
The following code(s) above
A23.9 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
A23.9:
Approximate Synonyms
Clinical Information
- A gram negative bacterial infection caused by bacteria of the genus brucella. Humans are infected by ingesting unpasteurized milk or meat from infected animals. Signs and symptoms include fevers, sweating, weakness, headache, muscle pain, arthritis and anemia.
- Infection caused by bacteria of the genus brucella mainly involving the mononuclear phagocyte system. This condition is characterized by fever, weakness, malaise, and weight loss.
ICD-10-CM A23.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 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 A23.9 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
- 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 A23.9:
- Brucellosis (infection) A23.9
- Disorder (of) - see also Disease
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
ICD-10-CM Diagnosis Code R50.9
Fever, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Fever NOS
- Fever of unknown origin [FUO]
- Fever with chills
- Fever with rigors
- Hyperpyrexia NOS
- Persistent fever
- Pyrexia NOS
- Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) N05.9
ICD-10-CM Diagnosis Code N05.9
Unspecified nephritic syndrome with unspecified morphologic changes
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- tubulo-interstitial (in) N12
ICD-10-CM Diagnosis Code N12
Tubulo-interstitial nephritis, not specified as acute or chronic
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Interstitial nephritis NOS
- Pyelitis NOS
- Pyelonephritis NOS
Type 1 Excludes- calculous pyelonephritis (N20.9)
- Pyelonephritis - see also Nephritis, tubulo-interstitial
- Sepsis (generalized) (unspecified organism) A41.9
ICD-10-CM Diagnosis Code A41.9
Sepsis, unspecified organism
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Spondylitis (chronic) - see also Spondylopathy, inflammatory
- in (due to)
- brucellosis A23.9
- cervical region A23.9
- cervicothoracic region A23.9
- lumbar region A23.9
- lumbosacral region A23.9
- multiple sites A23.9
- occipito-atlanto-axial region A23.9
- sacrococcygeal region A23.9
- thoracic region A23.9
- thoracolumbar region A23.9
ICD-10-CM Codes Adjacent To A23.9
A22.2 Gastrointestinal anthrax
A22.8 Other forms of anthrax
A22.9 Anthrax, unspecified
A23.0 Brucellosis due to Brucella melitensis
A23.1 Brucellosis due to Brucella abortus
A23.2 Brucellosis due to Brucella suis
A23.3 Brucellosis due to Brucella canis
A23.9
Brucellosis, unspecified
A24 Glanders and melioidosis
A24.1 Acute and fulminating melioidosis
A24.2 Subacute and chronic melioidosis
A24.9 Melioidosis, unspecified
A25.9 Rat-bite fever, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.