2012 ICD-9-CM Diagnosis Code 173.31 Show Basal cell carcinoma of skin of other and unspecified parts of face
Convert to ICD-10-CM: 173.31 converts approximately to:
Approximate Synonyms
C44.310 - Basal cell carcinoma of skin of unspecified parts of face is a topic covered in the ICD-10-CM. To view the entire topic, please log in or
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This section reviews each of the major sections of the C codes. Each of the tables below will have the ICD-10-CM code and the description. The use of “-“(e.g., C00.-), means that there are subcategory codes.
Neoplasm of Lip, Oral Cavity and Pharynx (C00-C14)
Neoplasm of Digestive Organs (C15-C26) Esophagus (C15.3-C15.9) Unlike previous medical coding schemes, ICD-10-CM only recognizes 3 specific subsites (plus overlapping and unspecified) of the esophagus rather than 6. Liver (C22.0) For liver cancers, there are eight codes in the ICD-10-CM, with 6 of the codes designating a specified histology.
The table below shows the rest of the digestive organs. Neoplasm of Respiratory System and Intrathoracic Organs (C30-C39) Note: Lung has laterality codes (0 = unspecified, 1 = right, 2 = left).
Neoplasm of Mesothelial and Soft Tissue (C45) For mesothelial and soft tissue cancers, there are 5 codes in the ICD-10-CM with 4 of the codes designating the location of the mesothelioma.
Neoplasm of Bones, Joints and Articular Cartilage (C40-C41) Note: Bone (C40 only) has laterality codes (0 = unspecified, 1 = right, 2 = left).
Neoplasm of Skin (Melanoma, Merkel Cell, and Other Skin Histologies) (C43, C44, C4a) There are three main categories for skin neoplasms in ICD-10-CM. C43 is for malignant melanomas, C4a for Merkel cell carcinoma and C44 for other and unspecified malignant neoplasms of skin. Laterality codes apply to many of the skin sites (0 = unspecified, 1 = right, 2 = left).
Kaposi Sarcoma (46) For Kaposi sarcoma, there are 8 codes in the ICD-10-CM. The codes breakdown the site of the Kaposi sarcoma. Lung (C46.5) has laterality codes (0 = unspecified, 1 = right, 2 = left)
Neoplasm of Peripheral Nerves and Autonomic nervous system, Retroperitoneum, Peritoneum, and Soft Tissues (C47, C48, C49) C47.1, C47.2, C49.1, and C49.2 have laterality codes (0 = unspecified, 1 = right, 2 = left).
Neoplasm of Breast and Female Genital Organs (C50 - C58) Breast codes for ICD-10-CM include sex along with laterality. The 5th character is the sex code, while the 6th character is the laterality code. Since the 5th character designates the sex, the breast cancer codes are applicable for both men and women. Note: ICD-10-CM uses “2” for males and “1” for females. Ovary has laterality codes which are included within a four-digit code. C57.0, C57.1, and C57.2 have laterality codes (0 = unspecified, 1 = right, 2 = left).
Neoplasm of Male Genital Organs (C60-C63) C62.0, C62.1, C62.9, C63.0, and C63.1 have laterality codes (0 = unspecified, 1 = right, 2 = left).
Neoplasm of Urinary Tract (C64-C68) C64, C65, and C66 have laterality codes (1 = right, 2 = left, 9 = unspecified). For these sites, the laterality code is the 4th character.
Neoplasms of Eye, Brain and Other Parts of the Central Nervous System (C69-C72) All the eye subcategories have laterality codes (0=unspecified, 1=right, 2=left).
Neoplasm of Thyroid, Other Endocrine Glands, and Ill-defined Sites (C73-C76)
Malignant Neuroendocrine Tumors (C7a._) ICD-10-CM has a specific category for neuroendocrine tumors.
Secondary Neuroendocrine Tumors (C7B) ICD-10-CM has specific category for secondary neuroendocrine tumors.
Neoplasm of other and ill- defined sites (C76-80) All the limb subcategories have laterality codes (0=unspecified, 1=right, 2=left).
Secondary and unspecified malignant neoplasm of lymph nodes (C77) C77 indicates involvement of lymph nodes and is frequently a secondary code. In the example provided here, there is a left UOQ female breast cancer patient with positive lymph nodes coded using ICD-10-CM - 50.412 code and the appropriate lymph node code, which is C77.3, Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes.
Secondary Cancers of respiratory and digestive organs, other and unspecified sites (C78-80) Secondary neoplasms are those that are not the primary. Many of these include metastatic disease and may be coded in addition to the primary neoplasm code.
Malignant Neoplasm without specification of site (C80)
Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) Both the lymphomas and leukemias have fifth characters. For lymphoma, the 5th character designates the location while for the leukemias and other hematopoietic diseases, the 5th character designates disease status (remission, relapse).
Updated: December 3, 2018 How do you code basal cell carcinoma?Basal cell carcinoma of skin, unspecified
C44. 91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2023 edition of ICD-10-CM C44. 91 became effective on October 1, 2022.
What is the ICDGroup 1. Is a basal cell carcinoma cancer?Basal cell carcinoma is a type of skin cancer that most often develops on areas of skin exposed to the sun, such as the face. On brown and Black skin, basal cell carcinoma often looks like a bump that's brown or glossy black and has a rolled border. Basal cell carcinoma is a type of skin cancer.
What is the ICD 9 code for basal cell carcinoma?ICD-9 code 173.31 for Basal cell carcinoma of skin of other and unspecified parts of face is a medical classification as listed by WHO under the range -MALIGNANT NEOPLASM OF BONE, CONNECTIVE TISSUE, SKIN, AND BREAST (170-176).
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