Crystal's MCW Coder Hub🧬 ICD-10 CM J38.1 - Polyp of Vocal Cord and Larynx
Short Description
ICD-10 CM J38.1 is used for polyp of the vocal cord and/or larynx - benign, non-neoplastic growths arising from the mucous membrane of the vocal cords or other laryngeal structures. This code applies when a polyp (typically pedunculated or sessile) is diagnosed on the true vocal cords, false vocal cords, or other parts of the larynx.
Key points: This is a billable, specific diagnosis code without laterality specification, used for benign polypoid lesions of the larynx that commonly cause hoarseness and voice changes.
Full Description & Clinical Context
Vocal cord and laryngeal polyps are benign, localized, non-neoplastic growths that arise from the lamina propria of the vocal fold or other laryngeal mucosa. They are typically caused by chronic voice abuse, smoking, reflux, or acute vocal trauma (such as screaming or prolonged phonation).
J38.1 applies when:
- A polyp is identified on laryngoscopy (direct or indirect) on the vocal cords or larynx
- The lesion is benign (not malignant or suspicious)
- It involves the true vocal cords, false vocal cords, or other laryngeal structures
- The polyp is typically unilateral but may be bilateral (code does not specify laterality)
Clinical presentation:
- Hoarseness (most common symptom)
- Breathy or rough voice quality
- Vocal fatigue, especially with prolonged speaking
- Sensation of something in the throat
- Coughing or throat clearing
- Rarely: dyspnea or stridor if polyp is large
Pathophysiology:
- Polyps form when the mucous membrane of the vocal cord or larynx bulges outward due to cellular proliferation, often with edematous or hemorrhagic changes
- Usually unilateral on the anterior or middle third of the true vocal cord (most common site)
- Can be pedunculated (on a stalk) or sessile (broad-based)
- Histologically: edematous stroma, dilated blood vessels, inflammatory cells
Diagnosis confirmed by:
- Flexible or rigid laryngoscopy showing visible polyp on vocal cord or larynx
- Videostroboscopy (may show reduced mucosal wave at polyp site)
- Pathology after excision (confirms benign nature)
Code Details
- Code set: ICD-10-CM
- Full code: J38.1
- Description: Polyp of vocal cord and larynx
- Parent code: J38 - Diseases of vocal cords and larynx, not elsewhere classified
- Code type: Billable/specific diagnosis code
- Specificity: Does NOT specify laterality (right vs left vocal cord)
Excludes at J38 category:
- Congenital laryngeal stridor (P28.89)
- Obstructive laryngitis (acute) (J05.0)
- Postprocedural subglottic stenosis (J95.5)
- Stridor (R06.1)
- Ulcerative laryngitis (J04.0)
Related J38 Family - Vocal Cord & Laryngeal Disorders
J38 includes various benign and functional vocal cord/laryngeal conditions:
| Code | Description | Key Features |
|---|---|---|
| J38.00 | Paralysis of vocal cords and larynx, unspecified | No side specified |
| J38.01 | Paralysis of vocal cords and larynx, unilateral | One vocal cord paralyzed |
| J38.02 | Paralysis of vocal cords and larynx, bilateral | Both vocal cords paralyzed (airway emergency) |
| J38.1 | Polyp of vocal cord and larynx | Benign polyp, any laryngeal location ← YOU ARE HERE |
| J38.2 | Nodules of vocal cords | Bilateral nodules (singer’s/screamer’s nodules) |
| J38.3 | Other diseases of vocal cords | Includes vocal cord granuloma, leukoplakia, other |
| J38.4 | Edema of larynx | Laryngeal edema (not polyp) |
| J38.5 | Laryngeal spasm | Laryngospasm |
| J38.6 | Stenosis of larynx | Laryngeal stenosis/narrowing |
| J38.7 | Other diseases of larynx | Other specified laryngeal conditions |
Key distinction: J38.1 is for polyps (focal growths); J38.2 is for nodules (typically bilateral, callous-like thickenings).
J38.1 vs J38.2 (Polyp vs Nodule) - CRITICAL Distinction
This is the most common coding confusion for benign vocal cord lesions:
| Feature | J38.1 (Polyp) | J38.2 (Nodules) |
|---|---|---|
| Lesion type | Polyp (soft, pedunculated or sessile) | Nodules (firm, bilateral, callous-like) |
| Laterality | Usually unilateral | Typically bilateral (singer’s nodules) |
| Location | Anterior/middle 1/3 of vocal cord (most common) | Bilateral at junction of anterior/middle 1/3 |
| Appearance | Smooth, translucent, or hemorrhagic; often on stalk | Firm, white, symmetric bilateral thickenings |
| Etiology | Acute trauma, chronic irritation, reflux | Chronic voice abuse, overuse |
| Population | Adults, smokers, reflux patients | Professional voice users, teachers, singers |
| Treatment | Often surgical excision | Voice therapy first, surgery if refractory |
Coding rule: If documentation says “polyp” → use J38.1. If “nodules” or “singer’s nodules” → use J38.2.
J38.1 vs Neoplasm Codes (Benign vs Malignant)
CRITICAL: J38.1 is for BENIGN polyps only!
| Diagnosis | Code | When to Use |
|---|---|---|
| Benign polyp of vocal cord/larynx | J38.1 | Confirmed benign polyp ← YOU ARE HERE |
| Benign neoplasm of larynx | D14.1 | Benign tumor (papilloma, fibroma, etc.) |
| Malignant neoplasm of larynx | C32.x | Cancer of larynx (requires staging, laterality) |
| Carcinoma in situ of larynx | D02.0 | Pre-invasive malignancy |
| Neoplasm of uncertain behavior | D38.0 | Uncertain malignant potential |
Note
Rule: If pathology or clinical suspicion suggests malignancy or neoplasm, use D14.1, C32.x, D02.0, or D38.0 - NOT J38.1.
When to Use J38.1
Use J38.1 when ALL of the following are true:
-
Polyp of vocal cord or larynx is documented:
- “Vocal cord polyp,” “laryngeal polyp,” “polyp of true vocal fold,” “polypoid lesion of larynx”
-
Lesion is benign (or presumed benign pending pathology):
- Not malignant, not suspicious for cancer
- Typical benign appearance on laryngoscopy
-
Confirmed by visualization:
- Laryngoscopy (flexible or rigid) shows polyp
- Videostroboscopy may be used
-
Not a nodule:
- If bilateral nodules → use J38.2 instead
Typical scenarios:
- “Unilateral vocal cord polyp, left true vocal fold” (diagnosed by flexible laryngoscopy)
- “Hemorrhagic polyp of right vocal cord secondary to voice strain”
- “Pedunculated polyp of anterior vocal cord”
- “Sessile polyp of larynx, scheduled for microlaryngoscopy with excision”
When NOT to Use J38.1
Do NOT use J38.1 when:
| Scenario | Use Instead | Why |
|---|---|---|
| Bilateral vocal cord nodules | J38.2 | Nodules, not polyps |
| Benign neoplasm (papilloma, etc.) | D14.1 | True neoplasm, not simple polyp |
| Malignant laryngeal lesion | C32.x | Cancer |
| Nasal polyp | J33.x | Wrong anatomic site (nose, not larynx) |
| Vocal cord granuloma | J38.3 | Other vocal cord disease |
| Laryngeal edema (no polyp) | J38.4 | Edema, not polyp |
| Postoperative state, history of polyp | Z87.09 or no code | No current polyp |
Warning
Critical: If pathology shows dysplasia or atypia, consider D14.1 or D38.0 instead of J38.1.
Documentation Requirements for J38.1
MINIMUM documentation to support J38.1:
✅ MUST include:
-
Explicit diagnosis of polyp:
- “Vocal cord polyp,” “laryngeal polyp,” “polypoid lesion”
-
Location specified:
- “Right vocal cord,” “left true vocal fold,” “anterior larynx,” etc.
- (Even though code doesn’t specify laterality, clinical documentation should)
-
Benign nature documented or implied:
- “Benign-appearing polyp” or “typical benign polyp”
- Pathology confirms benign if excised
-
Laryngoscopic confirmation:
- “Flexible laryngoscopy shows polyp on [location]”
- “Direct laryngoscopy reveals pedunculated polyp”
✅ SHOULD document (best practice):
- Size of polyp (e.g., “3mm pedunculated polyp”)
- Appearance (translucent, hemorrhagic, edematous, etc.)
- Impact on vocal cord mobility
- Impact on voice (hoarseness severity, voice handicap index score)
- Etiology (voice abuse, smoking, reflux, trauma)
- Duration of symptoms
- Treatment plan (observation, voice therapy, surgical excision)
- If excised: pathology results confirming benign polyp
HCC Information
- J38.1 does NOT map to a CMS-HCC - it is a benign, non-chronic condition
- No direct HCC weight or RAF score impact
- Used primarily for surgical/procedural necessity documentation
Note
No risk adjustment implications for Medicare Advantage or other value-based models.
RVU / wRVU Information
- ICD-10-CM codes (including J38.1) do NOT carry RVUs or wRVUs
- RVUs apply to CPT codes for procedures and E/M services
- J38.1 supports medical necessity for:
- Laryngoscopy (diagnostic)
- Microlaryngoscopy with polyp excision
- Voice therapy
- ENT E/M services
Common CPT Codes Used with J38.1
Diagnostic Laryngoscopy:
- 31575 - Laryngoscopy, flexible; diagnostic
- 31576 - Laryngoscopy, flexible; with biopsy
- 31579 - Laryngoscopy, flexible or rigid telescopic; with stroboscopy
Surgical Excision of Polyp:
- 31540 - Laryngoscopy, direct, operative, with excision of tumor and/or stripping of vocal cords or epiglottis
- 31541 - Laryngoscopy, direct, operative, with excision of tumor and/or stripping of vocal cords or epiglottis; with operating microscope or telescope
- 31545 - Laryngoscopy, direct, operative, with operating microscope or telescope; with removal of foreign body
- 31546 - Laryngoscopy, direct, operative, with operating microscope or telescope; with removal of non-neoplastic lesion(s) of vocal cord; simple
E/M Services:
- [[99202-99215 - Office/outpatient visits (ENT, primary care)
- [[99221-99233 - Initial hospital care (if surgical admission)
- 99281-99285 - ED visits (rarely; polyps are usually non-urgent)
Speech-Language Pathology (Voice Therapy):
- 92507 - Treatment of speech, language, voice, communication, and/or auditory processing disorder; individual
- 92526 - Treatment of swallowing dysfunction and/or oral function for feeding (if dysphagia present)
Anesthesia (if applicable for surgery):
- 00320 - Anesthesia for procedures on larynx and trachea; not otherwise specified
- May use general anesthesia or topical/local with sedation depending on approach
Common Associated ICD-10-CM Codes
Frequently coded WITH J38.1:
Causative/Contributing Factors
- R49.0 - dysphonia (hoarseness) - PRIMARY SYMPTOM
- K21.9 - Gastro-esophageal reflux disease without esophagitis (GERD - common contributor)
- K21.0 - GERD with esophagitis
- F17.210 - Nicotine dependence, cigarettes, uncomplicated (smoking - major risk factor)
- R05.9 - Cough, unspecified (chronic cough may coexist)
Other Voice/Laryngeal Conditions
- J38.2 - Nodules of vocal cords (if both nodules AND polyp present, code both)
- J38.3 - Other diseases of vocal cords (granuloma, leukoplakia)
- J37.0 - Chronic laryngitis
- J38.00-J38.02 - Vocal cord paralysis (if coexisting)
Post-Excision Follow-Up
- Z87.09 - Personal history of other diseases of the respiratory system (after polyp excision, if no current polyp)
Complications (Rare)
- J38.6 - Stenosis of larynx (if large polyp causes narrowing)
- R06.1 - stridor (if polyp causes airway compromise - RARE)
Clinical Examples: When to Use J38.1
✅ Example 1 - Unilateral Vocal Cord Polyp, Voice Abuse
SCENARIO:
42-year-old professional voice user (teacher) presents with 3 months of progressive hoarseness.
History:
- Daily voice use in classroom
- Noticed worsening hoarseness, voice fatigue
- No smoking, no significant reflux symptoms
- No dyspnea or stridor
Exam:
- Flexible laryngoscopy: 3mm pedunculated polyp on anterior left true vocal cord
- Benign appearance, no concerning features
- Right vocal cord normal
- No bilateral nodules
Assessment:
- Vocal cord polyp, left true vocal fold
- Secondary to chronic voice strain/overuse
Plan:
- Voice rest, voice therapy with SLP
- Treat any underlying reflux empirically
- Consider microlaryngoscopy with excision if no improvement in 8 weeks
CODES:
- **J38.1** - Polyp of vocal cord and larynx ✓
- **R49.0** - Dysphonia (hoarseness)
- CPT: 31575 (flexible laryngoscopy)
RATIONALE:
├─ Polyp documented on laryngoscopy
├─ Benign appearance
├─ Left vocal cord (laterality documented clinically, though J38.1 doesn't specify)
├─ Hoarseness is the presenting symptom
└─ J38.1 is appropriate for benign vocal cord polyp
✅ Example 2 - Hemorrhagic Polyp, Post-Excision
SCENARIO:
58-year-old with history of smoking presents with sudden hoarseness after screaming at a sports event.
Laryngoscopy findings:
- Large hemorrhagic polyp, right vocal cord
- Pedunculated, mobile
Procedure performed:
- Direct microlaryngoscopy with excision of vocal cord polyp under general anesthesia
Pathology:
- Benign polyp with hemorrhage and edema, no dysplasia
CODES (for surgical encounter):
- **J38.1** - Polyp of vocal cord and larynx ✓
- **R49.0** - Dysphonia
- **F17.210** - Nicotine dependence, cigarettes (if current smoker)
- CPT: **31541** - Microlaryngoscopy with excision, operating microscope
RATIONALE:
├─ Polyp confirmed visually and by pathology
├─ Benign on pathology
├─ Hemorrhagic type still coded as J38.1
├─ Surgical excision performed
└─ J38.1 supports medical necessity for 31541
✅ Example 3 - Vocal Cord Polyp with GERD
SCENARIO:
35-year-old with known GERD presents with chronic hoarseness.
Flexible laryngoscopy:
- Sessile polyp, posterior right vocal cord
- Erythema and edema of posterior larynx consistent with reflux
Diagnosis:
- Vocal cord polyp, likely reflux-related
- Laryngopharyngeal reflux
Plan:
- Increase PPI dosing
- Voice therapy
- Dietary/lifestyle modifications
- Reassess in 3 months; consider excision if persistent
CODES:
- **J38.1** - Polyp of vocal cord and larynx ✓
- **K21.9** - Gastro-esophageal reflux disease without esophagitis
- **R49.0** - Dysphonia
- CPT: 31575 (flexible laryngoscopy)
RATIONALE:
├─ Polyp present on exam
├─ GERD is contributing factor (code both)
├─ Conservative management initially
└─ J38.1 for the polyp, K21.9 for underlying GERD
❌ Example 4 - WRONG: Bilateral Nodules Coded as Polyp
SCENARIO:
Documentation: "Bilateral vocal cord nodules at the junction of anterior and middle third of both vocal cords. Firm, symmetric. Consistent with singer's nodules."
WRONG CODE: J38.1
CORRECT CODE: J38.2 - Nodules of vocal cords
WHY:
├─ These are NODULES, not polyps
├─ Bilateral and symmetric = classic for nodules (singer's/screamer's nodules)
├─ J38.1 is for polyps only
├─ J38.2 is the specific code for vocal cord nodules
└─ Coding polyp when nodules are documented is incorrect
❌ Example 5 - WRONG: Benign Neoplasm Coded as Polyp
SCENARIO:
Documentation: "Laryngeal papilloma, right vocal cord. Benign appearance. Plan for excision and pathology."
WRONG CODE: J38.1
CORRECT CODE: D14.1 - Benign neoplasm of larynx
WHY:
├─ Papilloma is a TRUE NEOPLASM (benign tumor), not a simple polyp
├─ Polyps (J38.1) are non-neoplastic reactive lesions
├─ Papillomas are coded to D14.1 (benign neoplasm)
├─ Using J38.1 for papilloma is under-coding
└─ D14.1 more accurately reflects the lesion type
❌ Example 6 - WRONG: Nasal Polyp Coded as Laryngeal
SCENARIO:
Documentation: "Bilateral nasal polyps. No laryngeal pathology."
WRONG CODE: J38.1
CORRECT CODE: J33.x (appropriate nasal polyp code)
WHY:
├─ J38.1 is for LARYNGEAL/VOCAL CORD polyps
├─ Nasal polyps have their own code family (J33.x)
├─ Completely different anatomic site
├─ Never confuse nasal and laryngeal polyps
└─ Wrong anatomic location = wrong code
Documentation Best Practices (Provider-Friendly Template)
CHIEF COMPLAINT:
Hoarseness / Voice changes
HISTORY OF PRESENT ILLNESS:
[Age]-year-old [gender] presents with [duration] of hoarseness.
Onset: [gradual/sudden]
Severity: [mild/moderate/severe; impact on daily activities]
Aggravating factors: [voice use, shouting, etc.]
Relieving factors: [voice rest]
Associated symptoms: [throat clearing, cough, dysphagia, odynophagia, dyspnea]
Risk factors:
- Voice use: [professional voice user/teacher/singer/coach]
- Tobacco: [pack-years]
- GERD: [yes/no]
- Recent voice trauma: [screaming, prolonged phonation]
PAST MEDICAL HISTORY:
- Prior laryngeal surgery: [yes/no]
- GERD: [yes/no]
- Other voice disorders: [yes/no]
MEDICATIONS: [List, especially PPI use]
SOCIAL HISTORY:
- Smoking: [current/former/never, pack-years]
- Alcohol use
- Occupation: [especially if professional voice user]
EXAMINATION:
General: Alert, in no distress, voice [quality description]
Neck: No masses, thyroid normal, no cervical lymphadenopathy
Laryngoscopy (flexible/rigid):
- Epiglottis: Normal
- Arytenoids: Normal, mobile
- False vocal cords: Normal
- True vocal cords:
- RIGHT: [Normal / Polyp - describe size, location, appearance]
- LEFT: [Normal / Polyp - describe size, location, appearance]
- Vocal cord mobility: [Normal bilaterally / Impaired on [side]]
- Subglottis: Normal
- Posterior larynx: [Normal / Erythema/edema suggestive of reflux]
FINDINGS:
[Size, e.g., 3mm] [pedunculated/sessile] polyp of [location: anterior/middle/posterior]
[right/left] true vocal cord. Benign appearance. [Unilateral/bilateral if applicable].
ASSESSMENT:
1. Vocal cord polyp, [right/left] true vocal fold (benign)
2. Dysphonia secondary to vocal cord polyp
3. [Contributing factors: GERD, voice abuse, smoking, etc.]
PLAN:
Conservative:
- Voice rest [duration]
- Voice therapy referral (speech-language pathology)
- Treat GERD if present (PPI, dietary modifications)
- Smoking cessation counseling if applicable
- Follow-up in [timeframe]
Surgical (if indicated):
- Microlaryngoscopy with excision of vocal cord polyp
- Pathology to confirm benign nature
- Postoperative voice rest and therapy
CODING DIAGNOSIS:
- J38.1 - Polyp of vocal cord and larynx
- R49.0 - Dysphonia
- [K21.9 - GERD if applicable]
- [F17.210 - Nicotine dependence if smoker]
Compliance Checklist
Before coding J38.1, verify:
- Polyp of vocal cord or larynx is explicitly documented
- Lesion is benign (or presumed benign pending pathology)
- Laryngoscopy confirmed the polyp (flexible or rigid)
- Location documented (right/left vocal cord, anterior/posterior, etc.)
- NOT bilateral nodules → if nodules, use J38.2 instead
- NOT a true neoplasm (papilloma, etc.) → if neoplasm, use D14.1 or other
- NOT malignant or suspicious → if cancer concern, use C32.x or D38.0
- Hoarseness/dysphonia documented as symptom (code R49.0 additionally)
- Contributing factors documented (GERD, smoking, voice abuse) and coded
- Treatment plan documented (observation, voice therapy, or surgery)
Quick Reference Card
ICD-10-CM J38.1 - POLYP OF VOCAL CORD AND LARYNX
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
USE WHEN:
• Polyp of vocal cord or larynx documented
• Benign lesion (not neoplasm, not malignant)
• Confirmed by laryngoscopy
• Typically unilateral (code doesn't specify side)
CRITICAL DISTINCTIONS:
• J38.1 = Polyp (soft, pedunculated/sessile, usually unilateral)
• J38.2 = Nodules (firm, bilateral, singer's nodules)
• D14.1 = Benign neoplasm (papilloma, fibroma, etc.)
• C32.x = Malignant neoplasm (laryngeal cancer)
DO NOT USE J38.1 FOR:
• Bilateral vocal cord nodules → J38.2
• Laryngeal papilloma → D14.1
• Malignant lesion → C32.x
• Nasal polyp → J33.x
• Vocal cord granuloma → J38.3
COMMON PRESENTATIONS:
• Chronic hoarseness (R49.0)
• Voice fatigue
• Breathy voice
• Professional voice users (teachers, singers)
TYPICAL ETIOLOGY:
• Voice abuse/overuse
• Smoking (F17.210)
• GERD (K21.9)
• Acute voice trauma (shouting, screaming)
PAIR WITH:
• R49.0 - Dysphonia/hoarseness (PRIMARY symptom)
• K21.9 - GERD (common contributor)
• F17.210 - Nicotine dependence (risk factor)
COMMON CPT CODES:
• 31575 - Flexible laryngoscopy (diagnostic)
• 31541 - Microlaryngoscopy with excision, microscope/telescope
• 31540 - Direct laryngoscopy with excision
• 92507 - Voice therapy (SLP)
TREATMENT OPTIONS:
• Conservative: Voice rest, voice therapy, treat GERD
• Surgical: Microlaryngoscopy with polyp excision
• Pathology confirms benign nature post-excision
HCC: None (benign condition)
RVU: None (diagnosis code)
BOTTOM LINE:
J38.1 = Benign vocal cord/laryngeal polyp.
Usually unilateral, causes hoarseness.
NOT for nodules (J38.2) or neoplasms (D14.1/C32.x).
Laryngoscopy required for diagnosis.ICD-9-CM Crosswalk (Historical Reference)
J38.1 maps to (approximate):
- 478.4 - Polyp of vocal cord or larynx (ICD-9)
Note: ICD-9 codes are for reference only; all current coding uses ICD-10-CM.
Last Updated: February 10, 2026
For coding reference only - always verify against current ICD-10-CM, official guidelines, payer policies, and ENT/otolaryngology billing standards.
Key Concept: J38.1 is for benign polyps of the vocal cord and/or larynx, typically presenting with hoarseness and diagnosed by laryngoscopy. It is distinct from vocal cord nodules (J38.2) and benign neoplasms (D14.1). The code does not specify laterality, but clinical documentation should detail the side and location. Common risk factors include voice abuse, smoking, and GERD. Treatment ranges from conservative voice therapy to surgical microlaryngoscopy with excision. Always confirm benign nature and exclude malignancy when coding J38.1.