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N93.9
ICD-10-CM
Abnormal Uterine Bleeding

Understand Abnormal Uterine Bleeding (AUB), also known as Dysfunctional Uterine Bleeding or Menorrhagia. This guide provides information on AUB diagnosis, clinical documentation, and medical coding for healthcare professionals. Learn about Menorrhagia symptoms, causes, and treatment options. Improve your clinical documentation and medical coding accuracy with this comprehensive resource for AUB.

Also known as

AUB
Dysfunctional Uterine Bleeding
Menorrhagia
+1 more

Diagnosis Snapshot

Key Facts
  • Definition : Vaginal bleeding outside of normal menstruation. Can be heavy, prolonged, or irregular.
  • Clinical Signs : Heavy periods, prolonged bleeding, spotting between periods, pelvic pain, anemia.
  • Common Settings : Primary care, gynecology, emergency department (for severe cases).

Related ICD-10 Code Ranges

Complete code families applicable to AAPC N93.9 Coding
N92-N92

Excessive, frequent, and irregular menstruation

Covers various abnormal uterine bleeding disorders.

N93-N93

Other abnormal uterine bleeding

Includes unspecified abnormal bleeding and postmenopausal bleeding.

R31-R31

Unspecific abnormal vaginal bleeding

Used when a more specific diagnosis is not available.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the AUB due to an underlying medical condition (e.g., thyroid disorder, coagulopathy)?

  • Yes

    Specify the underlying condition.

  • No

    Is the AUB related to pregnancy, childbirth or the puerperium?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Abnormal bleeding from the uterus.
Heavy menstrual bleeding.
Painful menstruation.

Documentation Best Practices

Documentation Checklist
  • Document AUB symptom onset, duration, and flow characteristics.
  • Rule out pregnancy, medications, and underlying conditions.
  • Specify menorrhagia, metrorrhagia, or menometrorrhagia if applicable.
  • Include pelvic exam findings and relevant imaging results.
  • Code using ICD-10 N92.0, N92.1, or other appropriate codes.

Coding and Audit Risks

Common Risks
  • Unspecified AUB

    Coding AUB without specifying cause (e.g., structural vs. nonstructural) leads to inaccurate severity and treatment reflection.

  • AUB vs. Menorrhagia

    Incorrectly coding menorrhagia (heavy bleeding) as general AUB can underrepresent the clinical picture for quality metrics.

  • Unconfirmed Diagnosis

    Coding AUB without sufficient clinical documentation supporting the diagnosis can trigger claim denials and compliance issues.

Mitigation Tips

Best Practices
  • Document AUB type: PALM-COEIN for ICD-10 coding accuracy.
  • Detailed HPI improves AUB diagnosis and care plan.
  • Code menorrhagia (N92.0) with specific cause if known.
  • Rule out underlying conditions for compliant AUB billing.
  • Shared decision-making for AUB management optimizes patient care.

Clinical Decision Support

Checklist
  • Confirm AUB diagnosis: ICD-10 N85.1, exclude pregnancy (ICD-10 Z32.01)
  • PALM-COEIN classification documented for AUB etiology?
  • Assess bleeding severity: Pictorial Blood Assessment Chart (PBAC)
  • Consider endometrial biopsy if >45 years old or risk factors present

Reimbursement and Quality Metrics

Impact Summary
  • ICD-10 coding: Accurate AUB/DUB coding (N93.8, N92.*, others) maximizes reimbursement.
  • Quality metrics: AUB diagnosis impacts metrics tied to womens health, GYN procedures.
  • Hospital reporting: Proper AUB coding affects case mix index (CMI), resource allocation.
  • Denial management: Precise AUB documentation supports appeals for denied claims (e.g., endometrial ablation).

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Frequently Asked Questions

Common Questions and Answers

Q: What is the most effective diagnostic approach for differentiating between the various causes of Abnormal Uterine Bleeding (AUB) in perimenopausal women?

A: Diagnosing the underlying cause of AUB, particularly in perimenopausal women, requires a systematic approach. Begin with a thorough history, including menstrual cycle characteristics, associated symptoms (e.g., pelvic pain, bloating), and relevant medical history. Physical examination should assess for uterine size, shape, and adnexal masses. Transvaginal ultrasound is crucial for evaluating endometrial thickness and identifying structural abnormalities like fibroids or polyps. Consider endometrial biopsy, especially in women over 45 or with risk factors for endometrial hyperplasia or cancer, to rule out malignancy. Other diagnostic tools like sonohysterography or hysteroscopy may be indicated depending on initial findings. For women approaching menopause, hormonal evaluation (FSH, LH, estradiol) can be informative. Explore how a structured diagnostic algorithm can streamline AUB evaluation in your practice.

Q: How can clinicians effectively manage heavy menstrual bleeding (Menorrhagia) while minimizing the need for surgical interventions like hysterectomy?

A: Managing menorrhagia conservatively often begins with medical therapies. First-line options include combined oral contraceptives (COCs) or progestin-only methods like the levonorgestrel-releasing intrauterine system (LNG-IUS) to regulate the menstrual cycle and reduce bleeding. Tranexamic acid, an antifibrinolytic agent, can be utilized during menses to control heavy bleeding episodes. Nonsteroidal anti-inflammatory drugs (NSAIDs) can also provide symptomatic relief. For women with specific underlying causes like fibroids, targeted therapies such as GnRH agonists may be considered. However, long-term use of GnRH agonists is often limited due to potential side effects. If medical management fails, minimally invasive procedures like endometrial ablation or uterine artery embolization can be explored before considering hysterectomy. Consider implementing a shared decision-making approach with patients to tailor treatment strategies based on individual preferences and clinical circumstances. Learn more about the long-term outcomes associated with various AUB treatments.

Quick Tips

Practical Coding Tips
  • Code AUB for primary diagnosis
  • ICD-10 N92.x or N93.x
  • Document bleeding pattern
  • Consider DUB if no pathology
  • Rule out pregnancy (ICD Z32.01)

Documentation Templates

Patient presents with abnormal uterine bleeding (AUB), also known as dysfunctional uterine bleeding (DUB), characterized by [frequency, duration, and flow of bleeding; e.g., prolonged menses lasting greater than seven days, heavy menstrual bleeding (menorrhagia) with saturation of one pad or tampon per hour, frequent bleeding occurring less than 21 days apart, intermenstrual bleeding, or postmenopausal bleeding].  Differential diagnosis includes endometrial hyperplasia, endometrial polyps, uterine fibroids, adenomyosis, von Willebrand disease, coagulopathy, and malignancy.  Patient reports [associated symptoms such as pelvic pain, cramping, fatigue, dizziness, or lightheadedness].  Physical examination reveals [relevant findings; e.g., normal-sized uterus on bimanual exam, no adnexal masses].  Pelvic ultrasound was ordered to evaluate for structural abnormalities.  Laboratory studies including complete blood count (CBC) with hemoglobin and hematocrit, coagulation profile, and thyroid stimulating hormone (TSH) were obtained.  Initial management includes [medical or surgical interventions; e.g., hormonal therapy with combined oral contraceptives, progestin-only pills, levonorgestrel intrauterine device (LNG-IUD), tranexamic acid for symptomatic relief, or endometrial ablation].  Patient education provided on AUB causes, diagnostic workup, treatment options, and potential complications.  Follow-up scheduled to assess treatment response and discuss further management as needed.  ICD-10 code [N92.0, N92.1, or other appropriate code] assigned.
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