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ICD-10 Guide
ICD-10 CodesChapter 15: Pregnancy, childbirth and the puerperiumO23

O23

Billable

Infections of genitourinary tract in pregnancy

Chapter 15:Pregnancy, childbirth and the puerperium

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/08/2025

Code Description

ICD-10 O23 is a billable code used to indicate a diagnosis of infections of genitourinary tract in pregnancy.

Key Diagnostic Point:

Infections of the genitourinary tract during pregnancy can significantly impact maternal and fetal health. These infections may include urinary tract infections (UTIs), pyelonephritis, and other bacterial infections affecting the bladder, urethra, and kidneys. Pregnant women are particularly susceptible to these infections due to physiological changes such as increased urinary stasis and hormonal alterations that affect the urinary tract. Symptoms may include dysuria, frequency, urgency, and flank pain. If left untreated, these infections can lead to serious complications such as preterm labor, low birth weight, and maternal sepsis. Diagnosis typically involves urinalysis and culture, and treatment often includes antibiotics that are safe for use during pregnancy. It is crucial for healthcare providers to monitor and manage these infections effectively to ensure the health of both the mother and the fetus.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of infections that can be coded under O23
  • Need for accurate documentation of symptoms and treatment
  • Differentiation between acute and chronic infections
  • Consideration of antibiotic safety and potential side effects

Audit Risk Factors

  • Inadequate documentation of infection type and severity
  • Failure to document antibiotic treatment and response
  • Misclassification of infection as a non-obstetric condition
  • Lack of follow-up documentation for recurrent infections

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of symptoms, diagnostic tests, and treatment plans is essential. Providers should note any complications arising from infections.

Common Clinical Scenarios

Common scenarios include a pregnant woman presenting with UTI symptoms, a diagnosis of pyelonephritis requiring hospitalization, or recurrent UTIs during pregnancy.

Billing Considerations

Coders must be aware of the safety profiles of antibiotics prescribed during pregnancy and ensure that documentation reflects the rationale for treatment choices.

Maternal-Fetal Medicine

Documentation Requirements

High-risk pregnancies require comprehensive documentation of maternal health, including any infections and their management.

Common Clinical Scenarios

Complex cases may involve pregnant women with pre-existing conditions exacerbated by infections, necessitating multidisciplinary care.

Billing Considerations

High-risk coding requires careful attention to detail, especially regarding the impact of infections on fetal health and development.

Coding Guidelines

Inclusion Criteria

Use O23 When
  • Coders should follow the official ICD
  • CM guidelines for obstetric coding, ensuring that all relevant clinical information is captured
  • Specific criteria for coding infections during pregnancy must be adhered to, including the documentation of the infection's impact on the pregnancy

Exclusion Criteria

Do NOT use O23 When
No specific exclusions found.

Related CPT Codes

87086CPT Code

Urine culture

Clinical Scenario

Used to confirm diagnosis of UTI in pregnant patients.

Documentation Requirements

Document the reason for the culture and any previous treatments.

Specialty Considerations

Obstetricians should ensure that cultures are performed in a timely manner to guide treatment.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of infections in pregnancy, improving the accuracy of data collection and reimbursement processes. It has also enhanced the ability to track maternal and fetal outcomes related to genitourinary infections.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of infections in pregnancy, improving the accuracy of data collection and reimbursement processes. It has also enhanced the ability to track maternal and fetal outcomes related to genitourinary infections.

Reimbursement & Billing Impact

reimbursement processes. It has also enhanced the ability to track maternal and fetal outcomes related to genitourinary infections.

Resources

Clinical References

  • •
    CDC Guidelines for Treating UTIs in Pregnancy

Coding & Billing References

  • •
    CDC Guidelines for Treating UTIs in Pregnancy

Frequently Asked Questions

What are the common antibiotics prescribed for UTIs in pregnancy?

Commonly prescribed antibiotics include nitrofurantoin, amoxicillin, and cephalexin, all of which are considered safe for use during pregnancy. However, it is essential to assess the patient's allergy history and any potential drug interactions.