Skin tag diagnosis and removal might seem straightforward, but ICD-10 coding for skin tags is one of the most commonly denied areas in dermatology and primary care billing. The challenge usually isn’t the procedure itself; it’s choosing the right ICD-10 code, documenting medical necessity, and avoiding codes insurers classify as cosmetic-only.
In this guide, you’ll get a clear, practical, and provider-friendly breakdown of the exact ICD-10 codes used for skin tags, which ones are billable, which ones cause claim denials, and how to document properly to ensure smooth reimbursement.
What Are Skin Tags (Acrochordons)?
Skin tags, medically known as acrochordons, are soft, benign skin growths that commonly form in areas where the skin folds or rubs together. They may also be referred to as skin tabs, soft fibromas, fibroepithelial polyps, or cutaneous papillomas. Though harmless, they can become irritated, inflamed, or cosmetically concerning, leading patients to seek evaluation or removal.
Common Locations
- Neck
- Eyelids
- Axillae
- Groin
- Under breasts
- Perianal or rectal region
These growths are typically painless, small, and flesh-colored, but friction from clothing or jewelry can cause discomfort. While skin tags are not dangerous, correct ICD-10 coding ensures appropriate documentation, especially when they cause symptoms or require medical treatment.
Why ICD-10 Coding for Skin Tags Matters
Accurately coding skin tags is critical because insurers frequently deny claims when removal is considered cosmetic rather than medically necessary. Clear ICD-10 selection helps providers:
- Differentiate skin tags from other dermatologic concerns (e.g., cysts, scars, warts)
- Support accurate clinical documentation
- Justify reimbursements for medically necessary removals
- Communicate diagnosis precisely across care teams
- Avoid miscoding that leads to denials or audits
When Removal Is Medically Necessary
Insurance payers typically cover removal when the skin tag is:
- Irritated or causing discomfort
- Bleeding
- Inflamed or infected
- Interfering with function (e.g., eyelid obstruction)
- Related to residual hemorrhoidal skin tags
In these situations, choosing the right billable ICD-10 code directly affects whether reimbursement is approved.
Common ICD-10 Codes for Skin Tags
Before reviewing individual codes, it’s important to understand that skin tag coding falls into two categories:
1. Billable ICD-10 Codes
These codes support medically necessary evaluation and removal. They must be paired with appropriate CPT codes (e.g., 11200, 11201) and supported by clear documentation of symptoms or complications.
2. Non-Billable ICD-10 Codes
These codes represent conditions not classified as skin tags or denote cosmetic, asymptomatic cases. Submitting these for removal will result in denial.
Understanding the distinction is crucial to compliant, successful billing.
Billable ICD-10 Codes for Skin Tags
Below are the most commonly used medically necessary ICD-10 codes for skin tags. These codes help justify removal when symptoms are present and support reimbursement when paired with the proper CPT code.
L91.8: Other Hypertrophic Disorders of the Skin
When to Use:
L91.8 is used when skin tags fall under general hypertrophic skin disorders, especially when no more specific code applies. Providers often use this code for:
- Neck skin tags
- Irritated or friction-based skin tags
- Axillary or groin tags
- General hypertrophic presentations
Why It’s Billable:
It indicates abnormal skin growth that may warrant medical attention, supporting the need for evaluation or removal.
Documentation Tips:
To maximize approval likelihood:
- Describe the skin tag’s size, number, and appearance
- Note specific symptoms (bleeding, irritation, pain)
- Document location clearly
- Explain why no more specific ICD-10 code applies
Thorough documentation helps prevent denials related to “cosmetic” classification.
D23.9: Benign Neoplasm of Skin, Unspecified
When to Use:
Use this code when the skin tag is considered a benign neoplasm, especially in cases where:
- The lesion is located on areas like the eyelid, face, back, or ear
- The tag has grown, changed, or caused discomfort
- Classification falls under benign skin tumors
Why It’s Billable:
This code informs insurers that the growth is a benign neoplasm, which may require removal for clinical reasons, not cosmetic ones.
Common Clinical Uses:
- Eyelid skin tags obstructing vision
- Painful or inflamed skin tags
- Facial or ear skin tags catching on clothing or accessories
Billing Example:
- Diagnose the skin tag
- Report D23.9
- Perform the removal procedure
- Submit CPT removal code + D23.9
L98.8: Other Specified Disorders of the Skin and Subcutaneous Tissue
When to Use:
L98.8 is appropriate when skin tags present with specific symptoms or fall under broader skin disorders, including:
- Inflamed skin tags
- Bleeding skin tags
- Genital or labial skin tags
- Painful or irritated tags
Why It’s Billable:
It indicates a medically significant skin disorder requiring treatment or removal.
Documentation Tips:
Because L98.8 is broad, providers must clearly document:
- The disorder being treated
- Specific symptoms
- Patient complaints
- Medical necessity for removal
This prevents insurers from flagging the code as cosmetic or insufficiently supported.
K64.4: Residual Hemorrhoidal Skin Tags
When to Use:
This code applies to anal or perianal skin tags resulting from the healing of past hemorrhoids. These are not active hemorrhoids, but leftover skin that can:
- Cause irritation
- Collect moisture
- Lead to hygiene difficulties
- Affect quality of life
Why It’s Billable:
Residual hemorrhoidal tags are recognized as a medical condition warranting removal when symptomatic.
Do Not Use If:
- The patient has active hemorrhoids
- Symptoms suggest another anorectal disorder
Documentation Checklist:
- History of hemorrhoids
- Presence of residual skin tags
- Symptoms (irritation, hygiene difficulty, pain)
- Exam findings
Non-Billable ICD-10 Codes for Skin Tags
Non-billable codes represent conditions that resemble skin tags but are not skin tags, or diagnoses that do not support medical necessity for removal. Claims submitted with these codes will be denied if paired with procedural codes for skin tag removal.
L72.3: Miliaria Rubra (Heat Rash)
This code describes a sweat gland obstruction leading to red, itchy bumps, often mistaken for skin tags. These bumps:
- Are not growths
- Appear in clusters
- Are related to heat and humidity
Because miliaria rubra is unrelated to acrochordons, L72.3 cannot be used to bill skin tag removal.
L91.0: Hypertrophic Scar
Hypertrophic scars develop after:
- Burns
- Surgery
- Trauma
- Inflammation
Though these scars may resemble skin tags, they are not benign growths and therefore cannot justify skin tag removal billing. Using L91.0 for acrochordons will result in denial.
L72.0: Epidermal Cyst
Epidermal cysts are keratin-filled sacs that may appear anywhere on the body. While providers may initially mistake them for skin tags, they represent a distinct condition. L72.0 is not billable for skin tag removal because:
- It does not describe acrochordons
- These cysts are often removed for cosmetic reasons
- The code does not support medical necessity
Skin Tag ICD-10 Code List (Billable vs Non-Billable)
The following table summarizes the most commonly used ICD-10 codes for skin tags, including their clinical use and billing status. This helps healthcare providers choose the correct code quickly based on location, symptoms, or associated condition.
| Skin Tag Location/Condition | ICD-10 Code | Reason/Explanation | Billable? |
| Neck | L91.8 | Hypertrophic skin disorders include skin tags in areas like the neck. | ✔ Billable |
| Irritated | L91.8 | Irritated skin tags fall under “Other hypertrophic disorders of the skin.” | ✔ Billable |
| Inflamed | L98.8 | Inflamed skin tags are classified as “Other specified disorders of skin.” | ✔ Billable |
| Eyelid | D23.9 | Benign neoplasm of skin; covers skin tags in locations like the eyelid. | ✔ Billable |
| Face | D23.9 | Applies to unspecified benign neoplasms of facial skin. | ✔ Billable |
| Left Axilla | L91.8 | Hypertrophic disorders include axillary skin tags. | ✔ Billable |
| Bleeding | L98.8 | Bleeding skin tags fall under “Other specified skin disorders.” | ✔ Billable |
| Rectal | K64.4 | Residual hemorrhoidal skin tags in the rectal region. | ✔ Billable |
| Genital | L98.8 | Genital or labial skin tags. | ✔ Billable |
| Unspecified | D23.9 | Unclassified benign neoplasm of the skin, including unspecified skin tags. | ✔ Billable |
| Labial | L98.8 | Labial skin tags fall under “Other specified skin disorders.” | ✔ Billable |
| Groin | L91.8 | Hypertrophic disorders include groin-area skin tags. | ✔ Billable |
| Back | D23.9 | Benign neoplasm of skin; includes back as an unspecified location. | ✔ Billable |
| Perianal | K64.4 | Perianal residual hemorrhoidal skin tags. | ✔ Billable |
| Ear | D23.9 | Ear skin tags are categorized under unspecified benign skin neoplasm. | ✔ Billable |
| Anus | K64.4 | Residual hemorrhoidal skin tags commonly appear around the anus. | ✔ Billable |
Clinically Common Scenarios & Correct ICD-10 Codes
Scenario 1: Irritated neck skin tag
Correct Code: L91.8 Use when the skin tag shows signs of irritation, friction, or redness.
Scenario 2: Inflamed groin skin tag
Correct Code: L98.8 Use when inflammation is reported or observed.
Scenario 3: Eyelid skin tag affecting vision
Correct Code: D23.9 Benign neoplasm classification supports medical necessity when vision is impacted.
Scenario 4: Perianal skin tag post-hemorrhoid
Correct Code: K64.4 Use only if the hemorrhoids have resolved and the tag is residual.
Scenario 5: Cosmetic asymptomatic skin tag
Correct Coding:
- ICD-10 code is often optional in documentation
- Not billable with procedural codes
- Removal is self-pay
Documentation Requirements for Successful Reimbursement
Insurers often deny skin tag removal claims due to inadequate documentation, not incorrect coding. To support medical necessity, providers should include the following details in their note:
1. Clear Diagnosis Description
- “Acrochordon” or “skin tag”
- Number of lesions
- Location(s)
2. Symptoms Supporting Medical Necessity
Include any of the following:
- Bleeding
- Pain or irritation
- Inflammation
- Obstruction (eyelid)
- Recurrent snagging on clothing or jewelry
- Interference with hygiene (perianal tags)
3. Objective Physical Exam Findings
- Size, color, texture
- Signs of trauma or irritation
- Any suspicious changes
4. Associated Clinical Conditions
Document if related to:
- Hemorrhoids (K64.4)
- Hormonal changes
- Obesity or metabolic disorders
- Friction-prone areas
5. CPT Code Pairing
Common CPT codes for skin tag removal:
- 11200: Removal of 1–15 skin tags
- 11201: Each additional 10 skin tags
Pairing ICD-10 + CPT correctly is essential for approval.
6. Avoid Using Non-Billable Codes With Removal
Codes like L72.3, L91.0, and L72.0 will result in automatic denial if submitted with CPT removal codes.
Key Points Healthcare Providers Should Know
- Skin tags are benign but may require removal when symptomatic.
- Coding accuracy directly affects reimbursement.
- L91.8, D23.9, L98.8, and K64.4 are the primary billable ICD-10 codes.
- Cosmetic-only removal is not reimbursable.
- Proper documentation is often the deciding factor in claim approval.
- Skin tags must be distinguished from cysts, warts, scars, and other skin lesions to avoid coding errors.
- Pair ICD-10 codes with appropriate CPT codes for a clean claim submission.
Conclusion
Correctly coding skin tags requires understanding the difference between billable vs non-billable ICD-10 codes, clearly documenting medical necessity, and pairing the right ICD-10 and CPT codes. By using codes like L91.8, D23.9, L98.8, and K64.4 when clinically appropriate, and avoiding cosmetic-only codes, you significantly reduce denials and ensure accurate reimbursement for medically necessary services.
