Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • D00.1

    Carcinoma in situ of esophagus

  • D00.2

    Carcinoma in situ of stomach

  • D01

    Carcinoma in situ of other and unspecified digestive organs

  • D01.0

    Carcinoma in situ of colon

  • D01.1

    Carcinoma in situ of rectosigmoid junction

  • D01.2

    Carcinoma in situ of rectum

  • D01.3

    Carcinoma in situ of anus and anal canal

  • D01.4

    Carcinoma in situ of other and unspecified parts of intestine

  • D01.40

    Carcinoma in situ of unspecified part of intestine

  • D01.49

    Carcinoma in situ of other parts of intestine

  • D01.5

    Carcinoma in situ of liver, gallbladder and bile ducts

  • D01.7

    Carcinoma in situ of other specified digestive organs

  • D01.9

    Carcinoma in situ of digestive organ, unspecified

  • D02

    Carcinoma in situ of middle ear and respiratory system

  • D02.0

    Carcinoma in situ of larynx

  • D02.1

    Carcinoma in situ of trachea

  • D02.2

    Carcinoma in situ of bronchus and lung

  • D02.20

    Carcinoma in situ of unspecified bronchus and lung

  • D02.21

    Carcinoma in situ of right bronchus and lung

  • D02.22

    Carcinoma in situ of left bronchus and lung

  • D02.3

    Carcinoma in situ of other parts of respiratory system

  • D02.4

    Carcinoma in situ of respiratory system, unspecified

  • D03

    Melanoma in situ

  • D03.0

    Melanoma in situ of lip

  • D03.1

    Melanoma in situ of eyelid, including canthus

  • D03.10

    Melanoma in situ of unspecified eyelid, including canthus

  • D03.11

    Melanoma in situ of right eyelid, including canthus

  • D03.111

    Melanoma in situ of right upper eyelid, including canthus

  • D03.112

    Melanoma in situ of right lower eyelid, including canthus

  • D03.12

    Melanoma in situ of left eyelid, including canthus

  • D03.121

    Melanoma in situ of left upper eyelid, including canthus

  • D03.122

    Melanoma in situ of left lower eyelid, including canthus

  • D03.2

    Melanoma in situ of ear and external auricular canal

  • D03.20

    Melanoma in situ of unspecified ear and external auricular canal

  • D03.21

    Melanoma in situ of right ear and external auricular canal

  • D03.22

    Melanoma in situ of left ear and external auricular canal

  • D03.3

    Melanoma in situ of other and unspecified parts of face

  • D03.30

    Melanoma in situ of unspecified part of face

  • D03.39

    Melanoma in situ of other parts of face

  • D03.4

    Melanoma in situ of scalp and neck

  • D03.5

    Melanoma in situ of trunk

  • D03.51

    Melanoma in situ of anal skin

  • D03.52

    Melanoma in situ of breast (skin) (soft tissue)

  • D03.59

    Melanoma in situ of other part of trunk

  • D03.6

    Melanoma in situ of upper limb, including shoulder

  • D03.60

    Melanoma in situ of unspecified upper limb, including shoulder

  • D03.61

    Melanoma in situ of right upper limb, including shoulder

  • D03.62

    Melanoma in situ of left upper limb, including shoulder

  • D03.7

    Melanoma in situ of lower limb, including hip

  • D03.70

    Melanoma in situ of unspecified lower limb, including hip

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