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  3. C00–D49
  4. D10-D36
  5. Other benign neoplasms of skin (D23)

Other benign neoplasms of skin (D23)

The ICD-10 code section D23 covers a range of other benign neoplasms of the skin, which are non-cancerous skin growths occurring at various body locations. These codes help specify benign tumors on skin areas such as the lip, eyelids, ears, face, scalp, neck, limbs, and trunk.

This section includes highly specific codes like D23.0 for benign neoplasms of the lip, which covers conditions commonly known as melanocytic nevus or dermatofibroma of the lip. The eyelid-related codes, such as D23.10 and its subcategories, describe benign skin tumors on the eyelids; terms like papilloma, trichoepithelioma, and eccrine hidrocystoma are synonymous here. Codes like D23.20 and D23.21 relate to benign growths of the external ear, incorporating tumors like ceruminous adenoma. The section also classifies benign skin tumors on the face, scalp, neck, trunk, upper and lower limbs, with synonyms including melanocytic nevus, dermatofibroma, and syringoma to clarify diagnosis. The unspecified code D23.9 encompasses a broad array of rare or multiple benign skin growths, including conditions such as epidermal nevus and syringocystadenoma papilliferum. These codes assist medical coders and healthcare professionals in accurately identifying particular benign skin neoplasms for proper documentation and treatment planning.

  • Neoplasms (C00–D49)

    • Benign neoplasms, except benign neuroendocrine tumors (D10-D36)

        • Other benign neoplasms of skin (D23)

        • D23 Other benign neoplasms of skin
        • D23.0 Other benign neoplasm of skin of lip
        • D23.1 Other benign neoplasm of skin of eyelid, including canthus
        • D23.10 Other benign neoplasm of skin of unspecified eyelid, including canthus
        • D23.11 Other benign neoplasm of skin of right eyelid, including canthus
        • D23.111 Other benign neoplasm of skin of right upper eyelid, including canthus
        • D23.112 Other benign neoplasm of skin of right lower eyelid, including canthus
        • D23.12 Other benign neoplasm of skin of left eyelid, including canthus
        • D23.121 Other benign neoplasm of skin of left upper eyelid, including canthus
        • D23.122 Other benign neoplasm of skin of left lower eyelid, including canthus
        • D23.2 Other benign neoplasm of skin of ear and external auricular canal
        • D23.20 Other benign neoplasm of skin of unspecified ear and external auricular canal
        • D23.21 Other benign neoplasm of skin of right ear and external auricular canal
        • D23.22 Other benign neoplasm of skin of left ear and external auricular canal
        • D23.3 Other benign neoplasm of skin of other and unspecified parts of face
        • D23.30 Other benign neoplasm of skin of unspecified part of face
        • D23.39 Other benign neoplasm of skin of other parts of face
        • D23.4 Other benign neoplasm of skin of scalp and neck
        • D23.5 Other benign neoplasm of skin of trunk
        • D23.6 Other benign neoplasm of skin of upper limb, including shoulder
        • D23.60 Other benign neoplasm of skin of unspecified upper limb, including shoulder
        • D23.61 Other benign neoplasm of skin of right upper limb, including shoulder
        • D23.62 Other benign neoplasm of skin of left upper limb, including shoulder
        • D23.7 Other benign neoplasm of skin of lower limb, including hip
        • D23.70 Other benign neoplasm of skin of unspecified lower limb, including hip
        • D23.71 Other benign neoplasm of skin of right lower limb, including hip
        • D23.72 Other benign neoplasm of skin of left lower limb, including hip
        • D23.9 Other benign neoplasm of skin, unspecified

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • benign neoplasm of hair follicles
  • benign neoplasm of sebaceous glands
  • benign neoplasm of sweat glands

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • melanocytic nevi D22

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Adenoma, Pleomorphic

A benign, slow-growing tumor, most commonly of the salivary gland, occurring as a small, painless, firm nodule, usually of the parotid gland, but also found in any major or accessory salivary gland anywhere in the oral cavity. It is most often seen in women in the fifth decade. Histologically, the tumor presents a variety of cells: cuboidal, columnar, and squamous cells, showing all forms of epithelial growth. (Dorland, 27th ed)

Angiofibroma

A benign neoplasm of fibrous tissue in which there are numerous small and large, frequently dilated, vascular channels. (Stedman, 25th ed)

Ganglioneuroma

A benign neoplasm that usually arises from the sympathetic trunk in the mediastinum. Histologic features include spindle cell proliferation (resembling a neurofibroma) and the presence of large ganglion cells. The tumor may present clinically with HORNER SYNDROME or diarrhea due to ectopic production of vasoactive intestinal peptide. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p966)

Horner Syndrome

A syndrome associated with defective sympathetic innervation to one side of the face, including the eye. Clinical features include MIOSIS; mild BLEPHAROPTOSIS; and hemifacial ANHIDROSIS (decreased sweating)(see HYPOHIDROSIS). Lesions of the BRAIN STEM; cervical SPINAL CORD; first thoracic nerve root; apex of the LUNG; CAROTID ARTERY; CAVERNOUS SINUS; and apex of the ORBIT may cause this condition. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp500-11)

Leiomyoma

A benign tumor derived from smooth muscle tissue, also known as a fibroid tumor. They rarely occur outside of the UTERUS and the GASTROINTESTINAL TRACT but can occur in the SKIN and SUBCUTANEOUS TISSUE, probably arising from the smooth muscle of small blood vessels in these tissues.

Myofibroma

A benign tumor that consists chiefly of fibrous CONNECTIVE TISSUE, with variable numbers of MUSCLE CELLS forming portions of the neoplasm (From Stedman's, 27th ed).

Myofibromatosis

A condition characterized by multiple formations of myofibromas (LEIOMYOMA).

Myopericytoma

Rare myofibroma-like perivascular soft tissue tumor, usually benign, characterized by concentric perivascular proliferation.

Pilomatrixoma

A tumor composed of cells resembling those of the hair matrix, which undergo 'mummification' and may calcify. It is a relatively uncommon tumor, which may occur at any age from infancy. The majority of patients are under 20, and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumor 3-30 mm in diameter, situated in the head, neck, or upper extremity. (From Rook et al., Textbook of Dermatology, 4th ed, p2401)

Syringoma

A benign tumor of the sweat glands which is usually multiple and results from malformation of sweat ducts. It is uncommon and more common in females than in males. It is most likely to appear at adolescence, and further lesions may develop during adult life. It does not appear to be hereditary. (Rook et al., Textbook of Dermatology, 4th ed, pp2407-8)