Is ICD-10-CM code D22 billable?

No, D22 (Melanocytic nevi) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code D22 belong to?

D22 belongs to Chapter 2 of the ICD-10-CM tabular list: C00–D49 (Neoplasms).

D22Not billable, use a more specific code below

Melanocytic nevi

In Benign neoplasms, except benign neuroendocrine tumors (D10-D36), chapter 2: Neoplasms

20 billable codes under D22: none are a CC or MCC; none map to an HCC.

Instructional notes

Includes: conditions that are coded here

atypical nevus
blue hairy pigmented nevus
nevus NOS

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Rules for coding benign and malignant neoplasms: using the Neoplasm Table, sequencing primary and secondary sites, treatment encounters, complications, and current cancer versus personal history.

Admission/Encounter for treatment of primary site (page 33)
Admission/Encounter for treatment of secondary site (page 33)
Coding and sequencing of complications (page 34)
Primary malignancy previously excised (page 34)
Admissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy (page 35)
Admission/encounter to determine extent of malignancy (page 36)
Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms (page 36)
Admission/encounter for pain control/management (page 36)

Read Section I.C.2 (page 32), 12 more topics

All codes under D22

D22 can't be used on a claim. Pick a billable code below; grey headings group them.

D22 MS-DRGs

As the principal diagnosis, the billable codes under D22 group to MS-DRG 606, 607, 124, or 125 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 606 Minor Skin Disorders with MCC (15 of 20 codes)
DRG 607 Minor Skin Disorders without MCC (15 of 20 codes)
DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (5 of 20 codes)
DRG 125 Other Disorders of the Eye without MCC (5 of 20 codes)

Other codes that refer to D22

Notes on these codes point to D22.

D18 Excludes2: blue or pigmented nevus (D22.-)
D18 Excludes2: nevus NOS (D22.-)
D23 Excludes2: melanocytic nevi (D22.-)
I78.1 Excludes1: nevus NOS (D22.-)
I78.1 Excludes2: blue nevus (D22.-)
I78.1 Excludes2: hairy nevus (D22.-)
I78.1 Excludes2: melanocytic nevus (D22.-)
I78.1 Excludes2: pigmented nevus (D22.-)
Q82.5 Excludes2: nevus NOS (D22.-)
Q82.5 Excludes2: melanocytic nevus (D22.-)
Q82.5 Excludes2: pigmented nevus (D22.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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. Pigmented birthmarks are made of a cluster of pigment cells which cause color in skin. They can be many different colors, from tan to brown, gray to black, or even blue. Moles can be birthmarks.

Moles

Moles are growths on the skin. They happen when pigment cells in the skin, called melanocytes, grow in clusters. Moles are very common. Most people have between 10 and 40 moles. A person may develop new moles from time to time, usually until about age 40. In older people, they tend to fade away.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.