Clinical Context
A typical patient is an adult presenting to an otolaryngology clinic with chronic nasal obstruction, recurrent sinus infections, or suspected sinonasal tumor requiring endoscopic evaluation and biopsy. The clinical workflow begins with history and nasal endoscopic exam in clinic. If targeted tissue sampling is needed, the patient is scheduled for an office-based or operating room endoscopic nasal procedure under local or general anesthesia. The team documents indication, informed consent, targeted anatomic site, and laterality. Peri-procedural steps include topical decongestant/vasoconstrictor application, endoscopic visualization, biopsy or excision of mucosal tissue or mass, hemostasis, and specimen submission to pathology. Post-procedure instructions address pain control, nasal care, activity restrictions, and follow-up for pathology review and further management.
Coding Specifications
| Modifier | Description | When to Use |
|---|
25 | Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure | Use when a distinct E/M visit is documented on the same date as the procedure. |
50 | Bilateral procedure | Use when the same procedure is performed on both sides during the same session.
59 | Distinct procedural service | Use to indicate a procedure or service that is distinct and separate from other services on the same day when not reported with anatomic modifiers.
76 | Repeat procedure or service by same physician | Use when the same provider repeats the procedure later the same day.
77 | Repeat procedure by another physician | Use when a different provider repeats the same procedure the same day.
RT | Right side | Use to identify procedures performed on the right side when laterality is required.
LT | Left side | Use to identify procedures performed on the left side when laterality is required.
GP | Services delivered under an established Medicare Part B outpatient physical therapy plan of care | Use when applicable to therapy-related procedural billing (rare for ENT biopsies).
TC | Technical component | Use when billing only the technical component of a service (equipment, supplies, non-physician staff).
26 | Professional component | Use when billing only the professional component (physician interpretation, performance).
| Taxonomy Code | Specialty | Notes |
|---|
207Y00000X | Otolaryngology (ENT) | Primary specialty performing sinonasal endoscopy and biopsies. |
2080P0005X | General Surgery | May perform nasal or sinus procedures in select settings.
207QA0000X | Allergy & Immunology | May refer and co-manage chronic sinus disease; less commonly performs procedures.
208000000X | Family Medicine | May perform basic nasal procedures in office settings or refer to ENT.
261QP2000X | Pathology | Processes and interprets tissue specimens obtained during the procedure.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|
J32.9 | Chronic sinusitis, unspecified | Chronic sinonasal inflammation frequently prompts endoscopic evaluation and biopsy to exclude polypoid disease or chronic infection. |
J01.90 | Acute sinusitis, unspecified | Acute infections with persistent symptoms may require endoscopic assessment and targeted culture or biopsy.
J33.9 | Nasal polyp, unspecified | Nasal polyps are visualized and often sampled or resected endoscopically.
R09.81 | Nasal congestion | Symptom driving diagnostic endoscopy when conservative treatment fails.
D14.3 | Benign neoplasm of middle ear and mastoid or other related sites (use cautiously) | Benign sinonasal masses may require biopsy to confirm histology.
C30.0 | Malignant neoplasm of nasal cavity | Suspicion of malignancy necessitates endoscopic biopsy for diagnosis.
J34.2 | Deviated nasal septum | Anatomic obstruction evaluated during endoscopy; sometimes sampled if mucosal abnormality is present.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
31231 | Nasal/sinus endoscopy, diagnostic, unilateral or bilateral (separate procedures) | Diagnostic endoscopy often precedes targeted biopsy or is performed concurrently for visualization. |
31237 | Nasal/sinus endoscopy, surgical, with biopsy, single or multiple | Commonly used for endoscopic biopsy or limited surgical sampling of sinonasal lesions.
31267 | Nasal/sinus endoscopy, surgical, with maxillary antrostomy | Performed when access to the maxillary sinus is required for biopsy or drainage.
30140 | Excision or destruction of lesion of the external nose; simple | Performed for external nasal lesions when an external approach is used instead of endoscopic biopsy.
88305 | Level IV surgical pathology, gross and microscopic examination | Typical pathology code for evaluation of a biopsy specimen obtained during the procedure.