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C34.90
ICD-10-CM
Lung Cancer

Find comprehensive information on lung cancer diagnosis including clinical documentation, medical coding (ICD-10-CM C34), symptoms, staging (TNM), treatment options, and healthcare resources. Learn about lung cancer types like non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC), pulmonary nodules, and the role of radiology and pathology in diagnosis. Explore resources for patients, physicians, and coding professionals seeking accurate and up-to-date information on lung cancer.

Also known as

Carcinoma of the Lung
Lung Carcinoma
Pulmonary Carcinoma
+2 more

Diagnosis Snapshot

Key Facts
  • Definition : Uncontrolled cell growth in lung tissue, often linked to smoking.
  • Clinical Signs : Persistent cough, shortness of breath, chest pain, hemoptysis, weight loss.
  • Common Settings : Oncology clinics, hospitals, thoracic surgery centers.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC C34.90 Coding
C34.0-C34.9

Malignant neoplasm of bronchus and lung

Covers cancers originating in the bronchi and lungs.

C78.0-C78.9

Secondary malignant neoplasm of lung

Identifies lung cancer that has spread from another primary site.

C80.0-C80.9

Malignant neoplasm without specification of site

Used when the specific location of the lung cancer is unknown.

Z85.820

Personal history of malignant neoplasm of lung

Indicates a past diagnosis of lung cancer, currently in remission or cured.

Code-Specific Guidance

Decision Tree for

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

Is the lung cancer malignant?

  • Yes

    Is histology confirmed?

  • No

    In situ?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Lung Cancer
Mesothelioma
Secondary Lung Cancer

Documentation Best Practices

Documentation Checklist
  • Lung cancer diagnosis documentation checklist
  • ICD-10-CM C34 malignant neoplasm of bronchus or lung
  • Confirm diagnosis with pathology report
  • Document TNM staging (size, nodes, mets)
  • Record type and location of lung cancer
  • Note treatment plan details (surgery, chemo, etc.)

Coding and Audit Risks

Common Risks
  • Laterality Coding

    Missing or incorrect laterality (right, left, bilateral) for lung cancer diagnosis (C34.x) impacts staging, treatment, and reimbursement.

  • Histology Specificity

    Unspecified histology for lung cancer lacks detail for accurate coding (C34.x subtypes), affecting quality metrics and research.

  • Staging Documentation

    Incomplete staging documentation (TNM) for lung cancer (C34.x) leads to inaccurate code assignment, impacting treatment planning and payment.

Mitigation Tips

Best Practices
  • ICD-10 C34 accurate coding for lung cancer type, site
  • Document smoking history, pack-years for risk adjustment
  • Thorough staging (TNM) crucial for HCC compliance, MS-DRG
  • CDI: Query physician for unclear lung cancer diagnosis details
  • Timely, specific documentation improves quality measures, coding

Clinical Decision Support

Checklist
  • Verify suspected lung cancer symptoms: cough, hemoptysis, dyspnea
  • Review imaging: Chest X-ray, CT scan for nodules, masses
  • Check smoking history, family history, asbestos exposure
  • Order biopsy for tissue diagnosis, staging if positive
  • Assess for metastasis: brain, bone, liver imaging

Reimbursement and Quality Metrics

Impact Summary
  • Lung Cancer Reimbursement: Coding accuracy impacts Medicare Severity Diagnosis Related Groups (MSDRG) assignment and payment. Proper staging documentation affects reimbursement.
  • Lung Cancer Quality Metrics: Accurate coding and reporting influence hospital quality scores, impacting public rankings and potential penalties.
  • Coding for Lung Cancer: Precise coding of histology, stage, and treatment impacts quality data extraction for cancer registries and research.
  • Lung Cancer Reporting: Complete documentation improves reporting for National Cancer Database (NCDB) and other national databases, aiding research and benchmarking.

Streamline Your Medical Coding

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

Quick Tips

Practical Coding Tips
  • Code C34.90 for unspecified lung cancer
  • Document laterality: right, left, or bilateral
  • Specify histology for accurate coding
  • Stage using TNM for precise diagnosis
  • NSCLC or SCLC: document specific type

Documentation Templates

Patient presents with complaints consistent with possible lung cancer, including persistent cough, hemoptysis, dyspnea, and unintentional weight loss.  Onset of symptoms reported as [timeframe].  Patient history includes [smoking history, occupational exposures, family history of lung cancer, relevant comorbidities such as COPD or emphysema].  Physical examination reveals [relevant findings such as diminished breath sounds, wheezing, lymphadenopathy].  Preliminary differential diagnosis includes lung cancer, pneumonia, bronchitis, tuberculosis.  Ordered tests include chest x-ray, CT scan of the chest, and complete blood count.  Imaging studies suggest [description of findings, e.g., presence of a nodule, mass, or effusion].  Pulmonary function tests were conducted to assess lung capacity and function.  Further evaluation with bronchoscopy and biopsy is recommended to obtain a tissue diagnosis and determine histological subtype, such as non-small cell lung cancer (NSCLC) including adenocarcinoma, squamous cell carcinoma, and large cell carcinoma, or small cell lung cancer (SCLC).  Staging workup will be performed to assess the extent of disease using TNM staging. Treatment options will be discussed with the patient following confirmation of diagnosis and staging, which may include surgery, chemotherapy, radiation therapy, targeted therapy, immunotherapy, or palliative care.  Referral to oncology and pulmonology is made.  Patient education provided regarding lung cancer symptoms, diagnosis, treatment options, and prognosis. Follow-up appointment scheduled for [date].