
Abnormal Uterine Bleeding ICD 10: Understanding Diagnosis, Causes, and Clinical Management
Inconsistent periods, unusually heavy bleeding, or spotting between cycles can be more than just an inconvenience—they may be signs of abnormal uterine bleeding (AUB). While these issues are common, their causes are complex and sometimes linked to serious health conditions. Abnormal Uterine Bleeding ICD 10 codes serve as a vital tool for healthcare providers to diagnose, classify, and manage these conditions effectively.
This comprehensive blog post will unpack everything you need to know about it from decoding the medical terminology to understanding causes, treatment options, and clinical coding best practices. Whether you’re a patient, healthcare provider, or medical student, this guide is your go-to resource.
What Is Abnormal Uterine Bleeding?
Abnormal uterine bleeding (AUB) refers to any variation from the normal menstrual cycle in terms of frequency, regularity, duration, or volume. It can occur at any age and affect quality of life significantly.
Common Symptoms Include:
- Heavy menstrual bleeding (menorrhagia)
- Bleeding between periods (metrorrhagia)
- Irregular menstrual cycles
- Bleeding after menopause
- Spotting after intercourse
Understanding ICD-10 and Its Importance

The International Classification of Diseases, 10th Revision (ICD-10), is a global standard used to code diagnoses, symptoms, and medical procedures. In the context of AUB, using accurate ICD-10 codes ensures:
- Standardization in patient records
- Insurance reimbursement
- Clinical research and public health statistics
Callout Box: “Proper coding under ICD-10 isn’t just administrative; it’s a critical step toward effective patient care.”
Abnormal Uterine Bleeding ICD 10 Codes Explained
Here are the most frequently used ICD-10 codes for abnormal uterine bleeding:
ICD-10 Code | Description |
---|---|
N92.0 | Excessive menstruation, regular cycle |
N92.1 | Excessive menstruation, irregular |
N92.2 | Irregular menstruation, unspecified |
N92.4 | Excessive bleeding in a premenopausal woman |
N92.5 | Other specified irregular menstruation |
N93.8 | Other specified abnormal uterine and vaginal bleeding |
N93.9 | Abnormal uterine/vaginal bleeding, unspecified |
Causes and Risk Factors of Abnormal Uterine Bleeding
AUB can be caused by various factors, which are often categorized under the PALM-COEIN classification:
Structural Causes (PALM):
- Polyp
- Adenomyosis
- Leiomyoma (fibroids)
- Malignancy and hyperplasia
Non-Structural Causes (COEIN):
- Coagulopathy
- Ovulatory dysfunction
- Endometrial causes
- Iatrogenic (e.g., medications)
- Not yet classified
Clinical Diagnosis and Evaluation
Diagnosing AUB involves a combination of patient history, physical exams, imaging, and lab tests.
Common Diagnostic Steps:
- Pelvic examination
- Pap smear
- Transvaginal ultrasound
- Endometrial biopsy
- Hormonal assays
- Coagulation profile
Tip: Always document symptoms meticulously to ensure accurate use of abnormal uterine bleeding ICD 10 codes.
Management and Treatment Options
Treatment varies based on the cause, patient age, fertility desires, and severity of symptoms.
Medical Treatments:
- Hormonal therapy (OCPs, progestins)
- Tranexamic acid
- NSAIDs
Surgical Treatments:
- Dilation and curettage (D&C)
- Endometrial ablation
- Myomectomy
- Hysterectomy (in severe cases)
Abnormal Uterine Bleeding ICD 10: Coding Tips for Professionals
Tips for Accurate Coding:
- Always confirm diagnosis through documentation.
- Avoid unspecified codes (like N93.9) unless absolutely necessary.
- Use supporting codes for underlying conditions (e.g., fibroids: D25.9).
- Update the coding as clinical status evolves.
Coding Scenario | Recommended ICD-10 Code |
Irregular but heavy menstruation | N92.1 |
AUB due to fibroids | N92.0 + D25.9 |
Postmenopausal bleeding | N95.0 |

Real-World Case Study
Case:
Patient: 36-year-old female, complaints of heavy bleeding for 7 consecutive months.
Evaluation: Ultrasound showed multiple intramural fibroids. Hemoglobin levels were low (8.6 g/dL).
Diagnosis: Abnormal uterine bleeding due to leiomyoma.
ICD-10 Codes Used:
- N92.0: Excessive menstruation, regular cycle
- D25.1: Intramural leiomyoma of uterus
Treatment: Hormonal IUD + iron supplementation
Outcome: Bleeding improved significantly in 3 months.
Frequently Asked Questions (FAQs)
Q1. What is the most commonly used abnormal uterine bleeding ICD 10 code?
A: N92.0 and N92.1 are among the most frequently used codes.
Q2. Can menopause cause abnormal bleeding?
A: Yes, any bleeding after menopause is considered abnormal and should be evaluated.
Q3. Is AUB a serious condition?
A: It can be. While many causes are benign, others (like cancer) require immediate attention.
Q4. Do I need surgery for AUB?
A: Not always. Medical management is often effective, depending on the cause.
Q5. Can birth control help?
A: Yes, hormonal birth control is a common treatment to regulate menstrual cycles.
Final Thoughts and Resources
Abnormal uterine bleeding can be disruptive, distressing, and sometimes dangerous. Knowing how to identify, classify, and manage it properly using abnormal uterine bleeding ICD 10 codes can lead to better patient outcomes and streamlined clinical practices.
Additional Resources:
- American College of Obstetricians and Gynecologists (ACOG)
- ICD-10 Official Coding Guidelines
- Mayo Clinic: Abnormal Uterine Bleeding
Call to Action: Have questions or experiences with AUB? Share your thoughts in the comments below, or contact your healthcare provider for a proper diagnosis.