Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • D12.3

    Benign neoplasm of transverse colon

  • D12.4

    Benign neoplasm of descending colon

  • D12.5

    Benign neoplasm of sigmoid colon

  • D12.6

    Benign neoplasm of colon, unspecified

  • D12.7

    Benign neoplasm of rectosigmoid junction

  • D12.8

    Benign neoplasm of rectum

  • D12.9

    Benign neoplasm of anus and anal canal

  • D13

    Benign neoplasm of other and ill-defined parts of digestive system

  • D13.0

    Benign neoplasm of esophagus

  • D13.1

    Benign neoplasm of stomach

  • D13.2

    Benign neoplasm of duodenum

  • D13.3

    Benign neoplasm of other and unspecified parts of small intestine

  • D13.30

    Benign neoplasm of unspecified part of small intestine

  • D13.39

    Benign neoplasm of other parts of small intestine

  • D13.4

    Benign neoplasm of liver

  • D13.5

    Benign neoplasm of extrahepatic bile ducts

  • D13.6

    Benign neoplasm of pancreas

  • D13.7

    Benign neoplasm of endocrine pancreas

  • D13.9

    Benign neoplasm of ill-defined sites within the digestive system

  • D13.91

    Familial adenomatous polyposis

  • D13.99

    Benign neoplasm of ill-defined sites within the digestive system

  • D14

    Benign neoplasm of middle ear and respiratory system

  • D14.0

    Benign neoplasm of middle ear, nasal cavity and accessory sinuses

  • D14.1

    Benign neoplasm of larynx

  • D14.2

    Benign neoplasm of trachea

  • D14.3

    Benign neoplasm of bronchus and lung

  • D14.30

    Benign neoplasm of unspecified bronchus and lung

  • D14.31

    Benign neoplasm of right bronchus and lung

  • D14.32

    Benign neoplasm of left bronchus and lung

  • D14.4

    Benign neoplasm of respiratory system, unspecified

  • D15

    Benign neoplasm of other and unspecified intrathoracic organs

  • D15.0

    Benign neoplasm of thymus

  • D15.1

    Benign neoplasm of heart

  • D15.2

    Benign neoplasm of mediastinum

  • D15.7

    Benign neoplasm of other specified intrathoracic organs

  • D15.9

    Benign neoplasm of intrathoracic organ, unspecified

  • D16

    Benign neoplasm of bone and articular cartilage

  • D16.0

    Benign neoplasm of scapula and long bones of upper limb

  • D16.00

    Benign neoplasm of scapula and long bones of unspecified upper limb

  • D16.01

    Benign neoplasm of scapula and long bones of right upper limb

  • D16.02

    Benign neoplasm of scapula and long bones of left upper limb

  • D16.1

    Benign neoplasm of short bones of upper limb

  • D16.10

    Benign neoplasm of short bones of unspecified upper limb

  • D16.11

    Benign neoplasm of short bones of right upper limb

  • D16.12

    Benign neoplasm of short bones of left upper limb

  • D16.2

    Benign neoplasm of long bones of lower limb

  • D16.20

    Benign neoplasm of long bones of unspecified lower limb

  • D16.21

    Benign neoplasm of long bones of right lower limb

  • D16.22

    Benign neoplasm of long bones of left lower limb

  • D16.3

    Benign neoplasm of short bones of lower limb

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