I78.1 Nevus, non-neoplastic

ICD10CM code

#### Name of the Condition
- Nevus, non-neoplastic
- Commonly referred to as birthmarks or moles.

#### Summary
Nevus, non-neoplastic, refers to a benign congenital or acquired lesion of the skin, often appearing as a mole or birthmark. These are common, typically harmless skin growths composed of clusters of melanocytes, the cells responsible for skin pigmentation.

#### Causes
Non-neoplastic nevi are primarily caused by clusters of melanocytes. They often develop due to genetic factors and can appear at birth or develop later in life, especially during early childhood or adolescence.

#### Risk Factors
- Genetic predisposition: A family history of moles or nevi.
- Skin type: Individuals with lighter skin may be more prone.
- Sun exposure: Excessive sun exposure can affect mole characteristics.

#### Symptoms
- Typically appear as a flat or raised spot with a distinct edge.
- Colors range from pink, tan, brown, or black.
- Generally smaller than a pencil eraser.

#### Diagnosis
- Physical examination by a healthcare provider using a dermatoscope.
- Biopsy may be performed if the mole has atypical features to rule out malignancy.

#### Treatment Options
- Regular monitoring and photographic documentation for changes.
- Surgical removal if there is suspicion of malignancy or for cosmetic reasons.
- Laser treatment for aesthetic concerns.

#### Prognosis and Follow-Up
- Generally benign and don't evolve into cancer.
- Routine skin checks to monitor changes over time.
- Prognosis is excellent if appropriately monitored.

#### Complications
- Risk of melanoma if nevi change in size, shape, or color.
- Psychological impact due to conspicuous moles, especially on the face.

#### Lifestyle & Prevention
- Minimize sun exposure and use sunscreen to prevent changes in moles.
- Regular self-examinations to track any modifications or growth.

#### When to Seek Professional Help
Seek medical attention if a mole changes in size, shape, or color, becomes painful or itchy, or starts bleeding.

#### Additional Resources
- [American Academy of Dermatology](https://www.aad.org)
- [Mayo Clinic - Birthmarks](https://www.mayoclinic.org)

#### Tips for Medical Coders
- Confirm the diagnosis with clinical notes as non-neoplastic.
- Ensure to distinguish from neoplastic conditions to avoid miscoding.
- Avoid confusing with similar ICD codes related to skin lesions.

Medical Policies and Guidelines for Nevus, non-neoplastic

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