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ICD-10 Guide
ICD-10 CodesO23.12

O23.12

Billable

Infections of bladder in pregnancy, second trimester

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

Code Description

ICD-10 O23.12 is a billable code used to indicate a diagnosis of infections of bladder in pregnancy, second trimester.

Key Diagnostic Point:

Infections of the bladder, or urinary tract infections (UTIs), are common during pregnancy, particularly in the second trimester due to physiological changes that occur in the urinary system. The growing uterus can exert pressure on the bladder, leading to incomplete emptying and increased risk of bacterial growth. Symptoms may include dysuria, frequency, urgency, and suprapubic pain. If left untreated, UTIs can lead to more serious complications such as pyelonephritis, which poses risks to both the mother and fetus. Diagnosis typically involves urinalysis and urine culture to identify the causative organism. Treatment is crucial and often involves antibiotics that are safe for use during pregnancy, such as nitrofurantoin or amoxicillin, while avoiding those that may pose risks to fetal development. Regular prenatal care and monitoring are essential to manage and prevent UTIs effectively during this critical period.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of urinary tract infections (e.g., cystitis vs. pyelonephritis)
  • Understanding the implications of antibiotic safety during pregnancy
  • Navigating documentation requirements for obstetric care
  • Recognizing the potential for complications affecting both mother and fetus

Audit Risk Factors

  • Inadequate documentation of symptoms and treatment plans
  • Failure to specify the trimester of pregnancy
  • Incorrect coding of the type of urinary tract infection
  • Lack of follow-up documentation for treatment efficacy

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of symptoms, urinalysis results, and treatment plans is essential for accurate coding.

Common Clinical Scenarios

A pregnant patient presents with dysuria and frequency; urinalysis shows bacteria, leading to a diagnosis of UTI.

Billing Considerations

Coders must be aware of the specific antibiotics prescribed and their safety profiles during pregnancy.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of maternal and fetal health, including any complications arising from UTIs.

Common Clinical Scenarios

A high-risk pregnant patient with a history of recurrent UTIs requiring specialized management.

Billing Considerations

Consideration of maternal-fetal interactions and potential impacts of infections on fetal development.

Coding Guidelines

Inclusion Criteria

Use O23.12 When
  • Follow the official ICD
  • CM coding guidelines for obstetric conditions, ensuring accurate documentation of the trimester and specific infection type
  • Use additional codes as necessary to capture any complications

Exclusion Criteria

Do NOT use O23.12 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

81002CPT Code

Urinalysis, automated, with microscopy

Clinical Scenario

Used during prenatal visits to screen for UTIs in pregnant patients.

Documentation Requirements

Document the reason for urinalysis and any findings.

Specialty Considerations

Obstetricians should ensure that urinalysis results are interpreted in the context of pregnancy.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including urinary tract infections, which enhances data accuracy and improves patient care tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including urinary tract infections, which enhances data accuracy and improves patient care tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including urinary tract infections, which enhances data accuracy and improves patient care tracking.

Resources

Clinical References

  • •
    CDC Guidelines for Antibiotic Use in Pregnancy

Coding & Billing References

  • •
    CDC Guidelines for Antibiotic Use in Pregnancy

Frequently Asked Questions

What are the common symptoms of a bladder infection during pregnancy?

Common symptoms include dysuria (painful urination), increased frequency and urgency of urination, and suprapubic pain. Some women may also experience fever or chills if the infection is more severe.