2027 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 2027 (October 1, 2026 through September 30, 2027) 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
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to D22.9: its own notes plus those printed at D22 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- atypical nevus
- blue hairy pigmented nevus
- nevus NOS
Notes
General instructions on how these codes are used.
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name D22.9, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming D22.9: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 10
These codes carry an Excludes2 note naming D22.9: its condition is not part of those codes, and both may be reported when the patient has both.
- D18 Hemangioma and lymphangioma, any siteblue or pigmented nevus (D22.-) names D22.-, which includes this code
- D18 Hemangioma and lymphangioma, any sitenevus NOS (D22.-) names D22.-, which includes this code
- D23 Other benign neoplasms of skinmelanocytic nevi (D22.-) names D22.-, which includes this code
- I78.1 Nevus, non-neoplasticblue nevus (D22.-) names D22.-, which includes this code
- I78.1 Nevus, non-neoplastichairy nevus (D22.-) names D22.-, which includes this code
- I78.1 Nevus, non-neoplasticmelanocytic nevus (D22.-) names D22.-, which includes this code
- I78.1 Nevus, non-neoplasticpigmented nevus (D22.-) names D22.-, which includes this code
- Q82.5 Congenital non-neoplastic nevusnevus NOS (D22.-) names D22.-, which includes this code
- Q82.5 Congenital non-neoplastic nevusmelanocytic nevus (D22.-) names D22.-, which includes this code
- Q82.5 Congenital non-neoplastic nevuspigmented nevus (D22.-) names D22.-, which includes this code
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
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Nevus, Pigmented
a nevus containing melanin. the term is usually restricted to nevocytic nevi (round or oval collections of melanin-containing nevus cells occurring at the dermoepidermal junction of the skin or in the dermis proper) or moles, but may be applied to other pigmented nevi.
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.
Read the full article at MedlinePlus
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Convert D22.9 to ICD-9-CMHistory
Code HistoryHistory
Questions About D22.9Overview
What is the ICD-10 code for melanocytic nevi, unspecified?
The ICD-10-CM code for melanocytic nevi, unspecified is D22.9 (sometimes written as D229). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
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 607, 606, with relative weights from 0.8772 to 1.5721 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.
