Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All Codes Billable Only

Internal Codes

Page 44 of 44

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D48.2|
Neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system
D48.3|
Neoplasm of uncertain behavior of retroperitoneum
D48.4|
Neoplasm of uncertain behavior of peritoneum
D48.5|
Neoplasm of uncertain behavior of skin
D48.6|
Neoplasm of uncertain behavior of breast
D48.60|
Neoplasm of uncertain behavior of unspecified breast
D48.61|
Neoplasm of uncertain behavior of right breast
D48.62|
Neoplasm of uncertain behavior of left breast
D48.7|
Neoplasm of uncertain behavior of other specified sites
D48.9|
Neoplasm of uncertain behavior, unspecified
D49|
Neoplasms of unspecified behavior
D49.0|
Neoplasm of unspecified behavior of digestive system
D49.1|
Neoplasm of unspecified behavior of respiratory system
D49.2|
Neoplasm of unspecified behavior of bone, soft tissue, and skin
D49.3|
Neoplasm of unspecified behavior of breast
D49.4|
Neoplasm of unspecified behavior of bladder
D49.5|
Neoplasm of unspecified behavior of other genitourinary organs
D49.51|
Neoplasm of unspecified behavior of kidney
D49.511|
Neoplasm of unspecified behavior of right kidney
D49.512|
Neoplasm of unspecified behavior of left kidney
D49.519|
Neoplasm of unspecified behavior of unspecified kidney
D49.59|
Neoplasm of unspecified behavior of other genitourinary organ
D49.6|
Neoplasm of unspecified behavior of brain
D49.7|
Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system
D49.8|
Neoplasm of unspecified behavior of other specified sites
D49.81|
Neoplasm of unspecified behavior of retina and choroid
D49.89|
Neoplasm of unspecified behavior of other specified sites
D49.9|
Neoplasm of unspecified behavior of unspecified site

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