Feverish, tired and experiencing pain below the belt, the typical symptoms of urinary tract infection (UTI) in women are more likely to develop in a body that is undergoing changes such as pregnancy. This is a medical emergency situation in the eyes of the clinician as he is required to decide quickly and the billing should be medically accurate too.
Rapid physiological changes, especially those involved during pregnancy, are known to raise the chances of women developing bacterial infections in the urea system. From a doctor’s point of view, if a pregnant woman comes to the clinic with bladder or kidney infection symptoms, he would definitely be thinking that this is the kind of case where he has to move very carefully, and he has to make sure that the diagnosis is backed by a medical billing that matches the symptoms perfectly.
It is the accurate coding of the uti in pregnancy icd 10 that provides a clinic with the means not only to record the state of the patient accurately but also, through proper claims submission, to claim reimbursement.
At Washington Medical Clinic, LLC, we go all out for the mothers who are expecting and throughout the pregnancy, our care goes beyond a mere diagnosis of the physical issues.
What Is the Exact UTI in Pregnancy ICD 10 Code Structure?
Medical coders cannot use normal general infection codes to document pregnant patients. The Chapter O23 of the ICD-10-CM coding manual addresses genitourinary tract infections related to pregnancy.
In an unspecified UTI in pregnancy ICD-10 case note or encounter you document, you should pick the right code that corresponds to the exact trimester:
- O23.40: General infection of the urinary tract in pregnancy without specifying the trimester.
- O23.41: General infection of the urinary tract in the first trimester of pregnancy.
- O23.42: General infection of the urinary tract during the second trimester of pregnancy.
- O23.43: General infection of the urinary tract in the third trimester of pregnancy.
If the doctor specifies the diagnosis, he or she should be referred to as one of these subcategories:
- O23.1: Infections of the bladder (cystitis) in pregnancy.
- O23.0: Infections of the kidney (pyelonephritis) in pregnant women
- O23.2: Infections of the urethra in pregnancy.
Whenever a culture report comes in, it is a good idea to append a secondary code (like B95 or B96) which indicates the organism responsible for the disease. For example, Escherichia coli (B96.2).

Recognizing UTI Symptoms ICD 10 Coding and Signs
Hormonal fluctuations like progesterone increase relaxes smooth muscle of ureters. Lowers urine flow and bacteria can multiply rapidly. Catching complications at an early stage will help to avoid severe upper tract complications.
Common warning signs you should watch out for:
- Urinating is painful or causing a burning sensation (painful urination/dysuria).
- Urge or frequency of urination increases dramatically.
- Pain in the lower abdomen or discomfort in the pelvis.
- Urine that is cloudy, dark or smells very bad.
- Mild temperatures or chills.
For a patient who reports symptoms at this early phase before a UTI diagnosis, Chapter 18 temporary diagnostic symptom codes can be used:
- R30.0: Painful urination (dysuria).
- R35.0: Urinary frequency (micturition).
- R31.9: Hematuria (blood in urine, unspecified).
With definitive bacterial diagnosis, primary uti in pregnancy icd 10 code family (O23) replaces initial symptom codes.
Managing UTI in Early Pregnancy and Recurrent Cases
A case of a urinary tract infection ( UTI ) at the very beginning of pregnancy must be treated at once. If early urine cultures during the first prenatal visit detect UTI infection, then, without getting worse, these hidden infections can be treated. Preterm labor and low birth weight are significantly more likely if early infections are left untreated.
Code Frequent UTI vs. Pregnancy Recurrence
A patient having chronic urinary problems would lead to some special coding cases.
- N39.0: A code to use for an active urinary tract infection in a non-pregnant patient.
- Z87.440 is for personal history of urinary tract infection. It is intended for cases with frequent uti history who are not infected now.
- Code for recurring utis in pregnancy: A pregnant woman having frequent recurrent active UTIs, the prime code is in the O23 range with trimester modifiers. In addition, a separate code Z87.440 would record that a patient has a background of recurrent infections.

Comprehensive Pregnancy Care in Silver Spring, MD
Pregnant women in Silver Spring, Maryland, should have the chance to receive highly trained medical attention and personal care throughout every stage of pregnancy. Here at Washington Medical Clinic, LLC, we provide complete prenatal care services. This includes thorough screening, diagnosing, and treatment for UTI.
We have various medical specialties and we provide customized care for any situation during the three trimesters of pregnancy. Our highly trained medical team makes sure all aspects from proper code documentation to patient billing are done efficiently, so that no part of the treatment is affected and the patient gets continuous quality healthcare support and care.
Contact Washington Medical Clinic, LLC today, for your prenatal appointment. It is the perfect opportunity for you to get professional help when you need it most and to take care of yourself physically and emotionally at the same time.
Frequently Asked Questions
Mother’s UTIs are given antibiotics that are proven safe during pregnancy and breastfeeding. Coding for the conditions is done by identifying “O86.2” UTI after child delivery code rather than the regular codes that relate to pregnancy.
Indeed, the infection is counted. Asymptomatic bacteriuria is the occurrence of bacteria in the urine but without displaying any symptoms. In pregnant women, this has to be treated with the use of antibiotics and it is coded as O23.4 (asymptomatic bacteriuria of pregnancy).
O23.40 is used as the main code with O23.43 to represent different aspects like a particular stage. Some of the diseases are coded as O23.1 (cystitis) and O23.0 (pyelonephritis) alongside digits that reflect the particular stage.



