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C55
ICD-10-CM
Carcinoma of the Uterus

Find comprehensive information on Carcinoma of the Uterus, also known as Endometrial Cancer or Uterine Cancer. This resource offers guidance on diagnosis, ICD-10 coding (C54-C55), clinical documentation best practices, and healthcare management of Uterine Cancer. Learn about symptoms, staging, treatment options, and the latest research related to Carcinoma of the Uterus and Endometrial Cancer for accurate medical coding and improved patient care.

Also known as

Endometrial Cancer
Uterine Cancer

Diagnosis Snapshot

Key Facts
  • Definition : Cancer arising from the lining of the uterus (endometrium).
  • Clinical Signs : Abnormal vaginal bleeding, postmenopausal bleeding, pelvic pain.
  • Common Settings : Gynecology clinic, oncology center, primary care.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC C55 Coding
C54-C55

Malignant neoplasm of uterus

Cancers affecting the body of the uterus or cervix.

C79.89

Secondary malignant neoplasm of uterus

Cancer that has spread to the uterus from another site.

C80.1

Malignant (primary) neoplasm, unspecified

Used when the specific site of the primary cancer is unknown.

Code-Specific Guidance

Decision Tree for

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

Is the carcinoma of the corpus uteri?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Malignant tumor of the uterine lining.
Precancerous changes in the uterine lining.
Benign smooth muscle tumor of the uterus.

Documentation Best Practices

Documentation Checklist
  • Uterus carcinoma: Document stage, grade, and histology.
  • Endometrial cancer: Note tumor size, location, and myometrial invasion.
  • Uterine cancer: Specify if primary or recurrent.
  • Document any relevant imaging/lab results (e.g., MRI, CA-125).
  • Surgical details if applicable (e.g., hysterectomy type).

Coding and Audit Risks

Common Risks
  • Histology Specificity

    Unspecified histology may lead to incorrect C79.9 code assignment. CDI should clarify the specific type of uterine carcinoma for accurate coding.

  • Stage and Grade Capture

    Missing stage and grade information impacts accurate code assignment and reimbursement. CDI should query for complete staging and grading details.

  • Primary vs. Secondary Site

    Distinguishing primary uterine cancer from metastatic disease is crucial for accurate coding. CDI should confirm the primary site of the malignancy.

Mitigation Tips

Best Practices
  • Code C54.X for Uterine Carcinoma, specify histology.
  • Document risk factors: age, obesity, HRT use.
  • Stage precisely using FIGO staging system.
  • Abstract comorbid conditions for accurate risk adjustment.
  • Ensure timely follow-up documentation for compliance.

Clinical Decision Support

Checklist
  • Verify ICD-10 C54.X, C55.X for uterine/endometrial cancer documentation accuracy.
  • Confirm histology report supports carcinoma diagnosis for patient safety.
  • Evaluate staging (FIGO) documented for proper treatment and coding.
  • Assess for relevant history, including abnormal bleeding, for risk factors.

Reimbursement and Quality Metrics

Impact Summary
  • Diagnosis: Uterine Carcinoma (C-codes), Endometrial Cancer ICD-10 coding, impacts reimbursement for hysterectomy, radiation, chemotherapy.
  • Accurate coding of uterine cancer stage (FIGO) affects hospital case mix index (CMI) and quality reporting.
  • Timely pathology reporting for endometrial carcinoma impacts accurate billing and claim processing turnaround time.
  • Uterine cancer treatment quality metrics (e.g., lymph node assessment) influence hospital value-based payments.

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 are the most effective current staging guidelines for endometrial carcinoma for accurate prognosis and treatment planning?

A: Accurate staging of endometrial carcinoma is crucial for prognosis and personalized treatment planning. The current gold standard is the 2009 FIGO staging system, which incorporates surgical assessment of myometrial invasion, cervical involvement, and regional and distant metastasis. While imaging modalities like MRI and PET/CT can be helpful preoperatively, surgical pathology remains definitive. Accurate staging also requires careful assessment of lymph node involvement, especially in higher-risk cases. Explore how advancements in molecular profiling are being integrated into staging to further refine risk stratification and guide treatment decisions.

Q: How do I differentiate between Type I and Type II endometrial carcinoma in terms of histopathology, molecular profile, and clinical management implications?

A: Differentiating Type I and Type II endometrial carcinomas is essential for tailored management. Type I, typically endometrioid histology, is often associated with estrogen excess, better prognosis, and is characterized by mutations in PTEN, CTNNB1, and KRAS. Type II, including serous, clear cell, and carcinosarcoma, tends to be more aggressive, is less hormone-sensitive, and harbors TP53 mutations, often with worse prognosis. These distinct molecular profiles are informing targeted therapies. Consider implementing molecular testing into your diagnostic workup to guide treatment choices and improve patient outcomes. Learn more about the role of specific molecular markers in personalizing treatment for endometrial carcinoma.

Quick Tips

Practical Coding Tips
  • Code C54.X for Uterine Carcinoma
  • Document histology for C54
  • Specify stage if known for C54
  • Check laterality, if applicable
  • Consider Z85.4- personal history

Documentation Templates

Patient presents with complaints suggestive of uterine carcinoma, also known as endometrial cancer.  Symptoms include abnormal uterine bleeding, postmenopausal bleeding, pelvic pain, and abnormal vaginal discharge.  The patient's medical history includes [Insert relevant medical history, e.g., nulliparity, obesity, hypertension, diabetes, family history of endometrial cancer, use of tamoxifen, history of polycystic ovary syndrome].  Physical examination revealed [Insert findings, e.g., enlarged uterus, palpable pelvic mass, normal or abnormal cervical appearance].  A pelvic ultrasound was performed, demonstrating [Insert ultrasound findings, e.g., thickened endometrium, uterine mass].  Endometrial biopsy was performed, and histopathology confirmed the diagnosis of [Specify type, e.g., endometrioid adenocarcinoma, serous carcinoma] of the uterus.  The diagnosis is consistent with ICD-10 code C54.9  (Malignant neoplasm of uterus, unspecified) and may be further specified based on histopathology.  Staging workup, including imaging studies such as CT scan of the abdomen and pelvis and chest x-ray, is planned to determine the extent of the disease and guide treatment planning.  Differential diagnoses considered included uterine fibroids, endometrial polyps, and atypical endometrial hyperplasia.  The patient was counseled regarding treatment options, including surgery (hysterectomy, bilateral salpingo-oophorectomy), radiation therapy, chemotherapy, and hormone therapy.  The risks and benefits of each treatment option were discussed, and the patient will be scheduled for consultation with a gynecologic oncologist for further management and treatment decisions.  The patient understands the diagnosis and treatment plan.  Follow-up appointments are scheduled for monitoring and ongoing care.