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Home/Diagnosis/ICD-10 Coding for Small Cell Carcinoma

ICD-10 Coding for Small Cell Carcinoma

C34.92
C34.32

Complete ICD-10-CM coding and documentation guide for icd-10 coding for small cell carcinoma includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Oat Cell Carcinoma
Small Cell Lung Cancer
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Key Information: ICD-10 Coding for Small Cell Carcinoma

Essential facts and insights about ICD-10 Coding for Small Cell Carcinoma

Use ICD-10 code C34.92 for malignant neoplasm of unspecified part of unspecified bronchus or lung, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Malignant neoplasm of unspecified part of unspecified bronchus or lung

Billable Code
C34.92
Billable

Diagnostic Criteria

clinical:
  • • Histologic confirmation of small cell carcinoma
documentation:
  • • Lack of specific site or laterality documentation

Applicable To

  • • Small cell carcinoma of unspecified lung

Important Notes

  • • Ensure documentation specifies 'small cell' to avoid misclassification.

Malignant neoplasm of lower lobe, left bronchus or lung

Billable Code
C34.32
Billable

Diagnostic Criteria

clinical:
  • • Histologic confirmation of small cell carcinoma
documentation:
  • • Imaging showing mass in left lower lobe

Applicable To

  • • Small cell carcinoma of left lower lobe

Important Notes

  • • Verify laterality in documentation to ensure accurate coding.
Ancillary Codes

Additional codes that may be used with this diagnosis

C78.00

Secondary malignant neoplasm of unspecified lung

Use for metastatic small cell carcinoma to the contralateral lung.

C79.51

Secondary malignant neoplasm of bone

Use for bone metastases from small cell carcinoma.

Frequently Asked Questions

What is the ICD-10 code for small cell carcinoma?

The ICD-10 code for unspecified small cell carcinoma is C34.92. For specific sites, use codes like C34.32 for the left lower lobe.

How do you code metastatic small cell carcinoma?

Use C78.00-C78.02 for secondary malignant neoplasm of lung and C79.51 for bone metastases.

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