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Home/Diagnosis/ICD-10 Coding for Neuroendocrine Carcinoma

ICD-10 Coding for Neuroendocrine Carcinoma

C7A.1
C7A.8
C7B.0

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

Also Known as:
NEC
Neuroendocrine Tumor
Poorly Differentiated Neuroendocrine Carcinoma
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Key Information: ICD-10 Coding for Neuroendocrine Carcinoma

Essential facts and insights about ICD-10 Coding for Neuroendocrine Carcinoma

Use ICD-10 code C7A.1 for malignant poorly differentiated neuroendocrine tumors, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Malignant poorly differentiated neuroendocrine tumors

Billable Code
C7A.1
Billable

Diagnostic Criteria

clinical:
  • • Presence of poorly differentiated morphology
documentation:
  • • Documented Ki-67 index and mitotic count

Applicable To

  • • Small cell neuroendocrine carcinoma
  • • Large cell neuroendocrine carcinoma

Important Notes

  • • Ensure differentiation is documented to avoid misclassification.

Other malignant neuroendocrine tumors

Billable Code
C7A.8
Billable

Applicable To

  • • Well-differentiated neuroendocrine carcinoma

Important Notes

  • • Ensure documentation specifies differentiation to avoid errors.

Secondary neuroendocrine tumors

Non-Billable
C7B.0
Non-Billable

Applicable To

  • • Metastatic neuroendocrine carcinoma

Important Notes

  • • Always sequence primary site before metastatic sites.
Ancillary Codes

Additional codes that may be used with this diagnosis

E34.0

Carcinoid syndrome

Use when carcinoid syndrome is present as a secondary condition.

C78.7

Secondary malignant neoplasm of liver

Use when liver metastasis is present.

Frequently Asked Questions

What is the ICD-10 code for neuroendocrine carcinoma?

The ICD-10 code for poorly differentiated neuroendocrine carcinoma is C7A.1, while well-differentiated types are coded as C7A.8.

How do you code metastatic neuroendocrine carcinoma?

Use C7B.0 for secondary neuroendocrine tumors, ensuring the primary site is coded first.

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