O23.91
BillableUnsp GU tract infection in pregnancy, first trimester
Unspecified genitourinary tract infection in pregnancy, first trimester
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •mental and behavioral disorders associated with the puerperiumF53
- •obstetrical tetanusA34
- •postpartum necrosis of pituitary glandE23.0
- •puerperal osteomalaciaM83.0
- •maternal care related to the fetus and amniotic cavity and possible delivery problemsO30-O48
- •maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperiumO98-O99
- •gonococcal infections complicating pregnancy, childbirth and the puerperiumO98.2
- •infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperiumO98.3
- •syphilis complicating pregnancy, childbirth and the puerperiumO98.1
- •tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperiumO98.0
- •venereal disease NOS complicating pregnancy, childbirth and the puerperiumO98.3
Use Additional Code
Additional codes that should follow this code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
- •code to identify organism,B95, B96
Related Codes(3)
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for unsp gu tract infection in pregnancy, first trimester?
The ICD-10-CM code for unsp gu tract infection in pregnancy, first trimester is O23.91. The full clinical description is "Unspecified genitourinary tract infection in pregnancy, first trimester". O23.91 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code O23.91 mean?
ICD-10-CM code O23.91 represents “Unspecified genitourinary tract infection in pregnancy, first trimester”. It is classified under Chapter 15: Pregnancy, Childbirth and the Puerperium and is a billable/specific code that can be used on a claim.
Is O23.91 a billable code?
Yes, O23.91 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is O23.91 in?
O23.91 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O23.91?
O23.91 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
Are additional codes required with O23.91?
Yes, when using O23.91, also report: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.; organism (B95.-, B96.-).
What are the UMLS CUIs for O23.91?
O23.91 is linked to 1 UMLS Concept Unique Identifier: C2903653. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does O23.91 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unsp gu tract infection in pregnancy, first trimester affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of O23.91?
There is no direct ICD-11 mapping available for O23.91 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.