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Chapter 2: Neoplasms

ICD-10-CM codes C00-D49

Includes all codes for cancer (malignant neoplasms), benign tumors, carcinoma in situ, and neoplasms of uncertain behavior. Common codes include breast cancer (C50), lung cancer (C34), prostate cancer (C61), and colon cancer (C18). This chapter is critical for oncology billing and cancer registry reporting.

C00-C14

Malignant Neoplasms of Lip, Oral Cavity and Pharynx

C15-C26

Malignant Neoplasms of Digestive Organs

C30-C39

Malignant Neoplasms of Respiratory and Intrathoracic Organs

C40-C41

Malignant Neoplasms of Bone and Articular Cartilage

C43-C44

Melanoma and Other Malignant Neoplasms of Skin

C45-C49

Malignant Neoplasms of Mesothelial and Soft Tissue

C50-C50

Malignant Neoplasms of Breast

C51-C58

Malignant Neoplasms of Female Genital Organs

C60-C63

Malignant Neoplasms of Male Genital Organs

C64-C68

Malignant Neoplasms of Urinary Tract

C69-C72

Malignant Neoplasms of Eye, Brain and Other Parts of CNS

C73-C75

Malignant Neoplasms of Thyroid and Other Endocrine Glands

C76-C80

Malignant Neoplasms of Ill-Defined, Other Secondary and Unspecified Sites

C81-C96

Malignant Neoplasms of Lymphoid, Hematopoietic and Related Tissue

D00-D09

In Situ Neoplasms

D10-D36

Benign Neoplasms, Except Benign Neuroendocrine Tumors

D37-D48

Neoplasms of Uncertain Behavior, Polycythemia Vera and Myelodysplastic Syndromes

D49-D49

Neoplasms of Unspecified Behavior

Frequently Asked Questions

What ICD-10 codes are in Chapter 2?

Chapter 2: Neoplasms covers ICD-10-CM codes C00-D49. It contains 18 code blocks with 140 top-level categories.

What conditions does ICD-10 Chapter 2 cover?

Includes all codes for cancer (malignant neoplasms), benign tumors, carcinoma in situ, and neoplasms of uncertain behavior. Common codes include breast cancer (C50), lung cancer (C34), prostate cancer (C61), and colon cancer (C18). This chapter is critical for oncology billing and cancer registry reporting. This chapter includes codes from C00-D49.

How many code blocks are in Chapter 2?

Chapter 2 has 18 code blocks: C00-C14 (Malignant Neoplasms of Lip, Oral Cavity and Pharynx), C15-C26 (Malignant Neoplasms of Digestive Organs), C30-C39 (Malignant Neoplasms of Respiratory and Intrathoracic Organs), C40-C41 (Malignant Neoplasms of Bone and Articular Cartilage), and 14 more.

Is there an ICD-11 equivalent of ICD-10 Chapter 2?

ICD-11 reorganizes many chapters compared to ICD-10. Some conditions in Chapter 2 may appear in different ICD-11 chapters. Use the ICD-10 to ICD-11 converter to find specific code equivalents.

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