Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All Codes Billable Only

Internal Codes

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C44.229|
Squamous cell carcinoma of skin of left ear and external auricular canal
C44.291|
Other specified malignant neoplasm of skin of unspecified ear and external auricular canal
C44.292|
Other specified malignant neoplasm of skin of right ear and external auricular canal
C44.299|
Other specified malignant neoplasm of skin of left ear and external auricular canal
C44.300|
Unspecified malignant neoplasm of skin of unspecified part of face
C44.301|
Unspecified malignant neoplasm of skin of nose
C44.309|
Unspecified malignant neoplasm of skin of other parts of face
C44.310|
Basal cell carcinoma of skin of unspecified parts of face
C44.311|
Basal cell carcinoma of skin of nose
C44.319|
Basal cell carcinoma of skin of other parts of face
C44.320|
Squamous cell carcinoma of skin of unspecified parts of face
C44.321|
Squamous cell carcinoma of skin of nose
C44.329|
Squamous cell carcinoma of skin of other parts of face
C44.390|
Other specified malignant neoplasm of skin of unspecified parts of face
C44.391|
Other specified malignant neoplasm of skin of nose
C44.399|
Other specified malignant neoplasm of skin of other parts of face
C44.40|
Unspecified malignant neoplasm of skin of scalp and neck
C44.41|
Basal cell carcinoma of skin of scalp and neck
C44.42|
Squamous cell carcinoma of skin of scalp and neck
C44.49|
Other specified malignant neoplasm of skin of scalp and neck
C44.500|
Unspecified malignant neoplasm of anal skin
C44.501|
Unspecified malignant neoplasm of skin of breast
C44.509|
Unspecified malignant neoplasm of skin of other part of trunk
C44.510|
Basal cell carcinoma of anal skin
C44.511|
Basal cell carcinoma of skin of breast
C44.519|
Basal cell carcinoma of skin of other part of trunk
C44.520|
Squamous cell carcinoma of anal skin
C44.521|
Squamous cell carcinoma of skin of breast
C44.529|
Squamous cell carcinoma of skin of other part of trunk
C44.590|
Other specified malignant neoplasm of anal skin
C44.591|
Other specified malignant neoplasm of skin of breast
C44.599|
Other specified malignant neoplasm of skin of other part of trunk
C44.601|
Unspecified malignant neoplasm of skin of unspecified upper limb, including shoulder
C44.602|
Unspecified malignant neoplasm of skin of right upper limb, including shoulder
C44.609|
Unspecified malignant neoplasm of skin of left upper limb, including shoulder
C44.611|
Basal cell carcinoma of skin of unspecified upper limb, including shoulder
C44.612|
Basal cell carcinoma of skin of right upper limb, including shoulder
C44.619|
Basal cell carcinoma of skin of left upper limb, including shoulder
C44.621|
Squamous cell carcinoma of skin of unspecified upper limb, including shoulder
C44.622|
Squamous cell carcinoma of skin of right upper limb, including shoulder
C44.629|
Squamous cell carcinoma of skin of left upper limb, including shoulder
C44.691|
Other specified malignant neoplasm of skin of unspecified upper limb, including shoulder
C44.692|
Other specified malignant neoplasm of skin of right upper limb, including shoulder
C44.699|
Other specified malignant neoplasm of skin of left upper limb, including shoulder
C44.701|
Unspecified malignant neoplasm of skin of unspecified lower limb, including hip
C44.702|
Unspecified malignant neoplasm of skin of right lower limb, including hip
C44.709|
Unspecified malignant neoplasm of skin of left lower limb, including hip
C44.711|
Basal cell carcinoma of skin of unspecified lower limb, including hip
C44.712|
Basal cell carcinoma of skin of right lower limb, including hip
C44.719|
Basal cell carcinoma of skin of left lower limb, including hip

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