2026 ICD-10-CM Diagnosis Code D22.9Melanocytic nevi, unspecified
ICD-10-CM Codes›C00–D49›D10-D36›D22
- Billable — Valid for Submission
- Not Chronic
D22.9 is a billable ICD-10-CM diagnosis code for melanocytic nevi, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired melanocytic nevus
- Acquired nevus spilus
- Acral nevus
- Atypical blue nevus of skin
- Balloon cell nevus of skin
- Becker nevus syndrome
- B-K mole syndrome
- Blue nevus of skin
- CLOVE syndrome
- Cockade nevus
- Combined melanocytic nevus
- Compound nevus of skin
- Congenital absence of skin on scalp with epidermal nevi
- Congenital benign giant pigmented nevus of skin
- Congenital intermediate sized melanocytic nevus
- Congenital pigmented melanocytic nevus of skin
- Congenital small melanocytic nevus
- Deep penetrating melanocytic nevus
- Deep penetrating melanocytoma
- Dermal cellular nevus
- Dermal melanocytic hamartoma
- Desmoplastic spindle and epithelioid cell melanocytic nevus of skin
- Dysplastic nevus of skin
- Epithelioid and spindle cell nevus
- Eruptive melanocytic nevi
- Hereditary disorder of lymphatic system
- Inflammatory epidermal nevus
- Inflammatory linear verrucous epidermal nevus
- Irritated melanocytic nevus of skin
- Junctional melanocytic nevus of skin
- Large congenital pigmented melanocytic nevus of skin
- Melanocytic nevus
- Melanocytic nevus of skin
- Melanocytic nevus of tongue
- Multiple atypical melanocytic nevi
- Multiple benign melanocytic nevi
- Myerson's nevus
- Neurocutaneous melanosis
- Nevus of oral mucosa
- Nevus spilus
- Persistent melanocytic nevus
- Pigmented hairy epidermal nevus
- Progeroid short stature with pigmented nevi
- PTEN hamartoma tumor syndrome
- Recurrent melanocytic nevus
- Segmental outgrowth, lipomatosis, arteriovenous malformation, epidermal nevus syndrome
- Spindle cell nevus
- Spindle cell nevus of Reed
- Verrucous compound melanocytic nevus
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Nevus - D22.9
- skin - D22.9
- nail - D22.9
- Sutton's benign - D22.9
- Sutton's nevus - D22.9
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Blue
- nevus
- Nevus
- Nevus
- skin
- Nevus
- skin
- nail
- Nevus
- Sutton's benign
- Sutton's nevus
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Childhood Pigmented Spindle Cell Nevus|Pediatric Pigmented Spindle Cell Nevus
a pigmented spindle cell nevus that occurs during childhood.Pigmented Spindle Cell Nevus|PSCN|Pigmented Spindle Cell Nevus of Reed|Pigmented Spindle Cell Variant of Spitz Nevus|Pigmented spindle cell nevus of Reed|Reed Nevus|Spindle Cell Nevus of Reed
a benign, small and slightly elevated brown or black skin lesion with usually well-demarcated borders. it is characterized by the presence of a melanocytic proliferation resulting in the formation of uniform cellular nests. sometimes the clinical and morphologic features may be difficult to distinguish from melanoma.Spindle Cell Nevus
a nevus characterized by the presence of spindle-shaped melanocytes.Spitz Nevus|Benign Juvenile Melanoma|Epithelioid and spindle cell nevus|Juvenile Nevus|Juvenile nevus|Spindle and/ or Epithelioid Cell Nevus|Spindle cell nevus, NOS|Spitz nevus
a benign, acquired or congenital, usually single skin lesion. it can occur on any area of the body, but most commonly occurs on the face of children and the thighs of young females. it is characterized by a proliferation of large spindle, oval, or large epithelioid melanocytes in the dermal-epidermal junction. the melanocytic proliferation subsequently extends into the dermis.Cockade Nevus
a rare speckled nevus with concentric pattern of pigmentation and central papule surrounded by clear zone.Pigmented Spindle Cell Nevus|PSCN|Pigmented Spindle Cell Nevus of Reed|Pigmented Spindle Cell Spitz Nevus|Pigmented Spindle Cell Variant of Spitz Nevus|Pigmented spindle cell nevus of Reed|Reed Nevus|Spindle Cell Nevus of Reed
a subtype of spitz nevus characterized by the presence of heavily pigmented spindle-shaped melanocytes that proliferate in the epidermis or in the epidermis and superficial dermis. it presents as a small and slightly elevated brown or black skin lesion with usually well-demarcated borders. sometimes the clinical and morphologic features may be difficult to distinguish from melanoma.Plexiform Spindle Cell Melanocytoma|Plexiform Spindle Cell Nevus
a subtype of wnt-activated deep penetrating/plexiform melanocytoma (nevus). it is characterized by the proliferation of neoplastic melanocytes in the upper dermis, forming a plexiform pattern.Spindle Cell Nevus
a spitz nevus characterized by the presence of spindle-shaped melanocytes.Spitz Nevus|Benign Juvenile Melanoma|Epithelioid and spindle cell nevus|Juvenile Nevus|Juvenile nevus|Spindle and/ or Epithelioid Cell Nevus|Spindle cell nevus, NOS|Spitz nevus
an acquired or congenital benign skin melanocytic neoplasm. it can occur on any area of the body, but most commonly occurs on the face of children and the thighs of young females. it is characterized by a proliferation of large spindle, oval, or large epithelioid melanocytes in the dermal-epidermal junction. the melanocytic proliferation subsequently extends into the dermis.Cockade Nevus
a rare cutaneous speckled nevus with concentric pattern of pigmentation and central papule surrounded by clear zone.
Patient EducationClinical
Birthmarks
Birthmarks are abnormalities of the skin that are present when a baby is born. There are two types of birthmarks. Vascular birthmarks are made up of blood vessels that haven't formed correctly. They are usually red. Two types of vascular birthmarks are hemangiomas and port-wine stains.
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Convert D22.9 to ICD-9-CMHistory
Code HistoryHistory
Questions About D22.9Overview
Is D22.9 (Melanocytic nevi) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report melanocytic nevi, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D22.9 group to?
When melanocytic nevi, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of D22.9?
Under the General Equivalence Mappings, melanocytic nevi, unspecified converts to ICD-9-CM 216.8 (benign neoplasm skin NEC) and 216.9 (benign neoplasm skin NOS). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
