C4A Merkel cell carcinoma

Non-billable header with 10 child codes.

Codes under C4A

• C4A.0 Merkel cell carcinoma of lip
• C4A.1 Merkel cell carcinoma of eyelid, including canthus
• C4A.2 Merkel cell carcinoma of ear and external auricular canal
• C4A.3 Merkel cell carcinoma of other and unspecified parts of face
• C4A.4 Merkel cell carcinoma of scalp and neck
• C4A.5 Merkel cell carcinoma of trunk
• C4A.6 Merkel cell carcinoma of upper limb, including shoulder
• C4A.7 Merkel cell carcinoma of lower limb, including hip
• C4A.8 Merkel cell carcinoma of overlapping sites
• C4A.9 Merkel cell carcinoma, unspecified

Code annotations containing back-references to C4A

Back-references to C4A

• Type 2 Excludes: C43 Malignant melanoma of skin ("Merkel cell carcinoma (C4A.-)")
• Type 1 Excludes: C44 Other and unspecified malignant neoplasm of skin ("Merkel cell carcinoma (C4A.-)")
• Type 2 Excludes: C7A Malignant neuroendocrine tumors ("Merkel cell carcinoma (C4A.-)")

Back-references to C4A

• Type 2 Excludes: C43 Malignant melanoma of skin ("Merkel cell carcinoma (C4A.-)")
• Type 1 Excludes: C44 Other and unspecified malignant neoplasm of skin ("Merkel cell carcinoma (C4A.-)")
• Type 2 Excludes: C7A Malignant neuroendocrine tumors ("Merkel cell carcinoma (C4A.-)")

Nearby codes

• C4A Merkel cell carcinoma (this code)
• C4A.0 Merkel cell carcinoma of lip
• C4A.1 Merkel cell carcinoma of eyelid, including canthus
• C4A.10 Merkel cell carcinoma of unspecified eyelid, including canthus
• C4A.11 Merkel cell carcinoma of right eyelid, including canthus
• C4A.111 Merkel cell carcinoma of right upper eyelid, including canthus