Summary & Overview

CPT 1001T: Autologous Muscle Progenitor Injection into External Anal Sphincter

CPT code 1001T represents an autologous cell-based injection procedure in which a provider injects a patient’s own muscle progenitor cells into the external anal sphincter, optionally using ultrasound guidance. The code captures a novel, targeted therapy intended to improve sphincter muscle function and address disorders associated with sphincter weakness. National attention centers on this code because it documents an advanced biologic intervention that intersects specialized outpatient procedural services and emerging regenerative medicine.

This analysis covers major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical and billing overview, payer coverage considerations, common coding relationships, and benchmarks where available. The publication summarizes policy updates or coverage patterns relevant to advanced regenerative procedures, provides context on typical sites of service and service type, and outlines what to expect in claims processing and documentation requirements. Clinical context explains the intended therapeutic target and procedural setting to help coding, billing, and policy teams align documentation with payer expectations.

Data not available in the input is noted where specific payer policies, modifiers, taxonomies, ICD-10 mappings, and related codes would normally be detailed.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 1001Tautologous cell therapyanal sphincter injectionregenerative medicineoutpatient procedureimage-guided injectionsphincter dysfunctionprocedural coding

Billing Code Overview

CPT code 1001T describes a procedure in which the provider injects the patient's own muscle progenitor cells into the external anal sphincter to improve muscle function. The description notes that the provider may use ultrasound guidance to assist the injection.

Service type: Autologous cell injection therapy targeting the external anal sphincter muscle
Typical site of service: Outpatient procedural setting such as an ambulatory surgery center or clinic procedure room where image-guided injections are performed

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 58-year-old female with postpartum-related fecal incontinence presents to a colorectal specialist after conservative measures (pelvic floor physical therapy, biofeedback, and continence medications) fail to improve symptoms. The evaluation includes anorectal manometry, endoanal ultrasound, and clinical exam confirming external anal sphincter weakness with preserved pudendal nerve function. The provider discusses autologous muscle progenitor cell injection into the external anal sphincter to improve sphincter contractility.

Procedure workflow: The patient arrives to an ambulatory surgical center or hospital outpatient department. After informed consent, the provider harvests a small muscle biopsy (often from the thigh) in a separate minor procedure or as part of a prior visit; muscle progenitor cells are expanded in a laboratory. On the day of injection, the patient is positioned in the lithotomy or prone jackknife position. Under local anesthesia with or without sedation, the provider uses digital guidance and may use endoanal or transperineal ultrasound for needle localization. Multiple small-volume injections of the patient’s autologous muscle progenitor cells are delivered into the external anal sphincter to augment muscle bulk and contractile function. The patient is observed briefly for immediate complications (bleeding, pain, infection) and discharged with instructions for activity modification and follow-up assessments including repeat anorectal manometry and continence scoring over months to assess functional improvement.

Coding Specifications

Modifier	Description	When to Use
`25`

Taxonomy Code	Specialty	Notes
`2080P0206X`	Colon and Rectal Surgery	Specialists who commonly perform sphincter procedures and injections
`207RP0400X`	Urology	Urologists with pelvic floor expertise may perform sphincter injections in select practices
`2086S0105X`	Family Medicine with Obstetrics & Gynecology focus	Primary care or pelvic floor specialists involved in coordination; less commonly performs injections
`207L00000X`	Physical Medicine & Rehabilitation	PM&R physicians involved in pelvic floor management and procedural interventions in multidisciplinary programs
`2084P0800X`	Gastroenterology	Gastroenterologists specializing in motility and anorectal disorders may be involved in evaluation and some injections

ICD-10 Code	Description	Clinical Relevance
`K59.2`	Neurogenic intestinal failure	Relevant when sphincter dysfunction is part of broader neurologic bowel dysfunction leading to fecal incontinence
`R15.9`	Full incontinence of feces, unspecified	Directly indicates fecal incontinence, the primary indication for sphincter augmentation procedures
`R15.0`	Incomplete defecation	May be present in patients with sphincter dysfunction affecting evacuation and continence
`N31.9`	Neuromuscular dysfunction of bladder, unspecified	Listed when pelvic floor neuromuscular disorders coexist; highlights pelvic floor pathology context
`S36.242A`	Injury of external anal sphincter, initial encounter	Traumatic sphincter injury that could be an indication for repair and adjunctive cell therapy injections

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`56260`	Fecal incontinence procedures, injection of bulking agent into the submucosal or intersphincteric space of the anal canal	Alternative or adjunctive injection therapy for fecal incontinence; may be performed in similar clinical settings when bulking agents are used instead of cell therapy
`51784`	Sling operation for stress incontinence (urethral) using natural tissue graft	Different anatomic focus (urinary vs anal) but represents pelvic floor reconstructive procedures that may be performed in patients with combined pelvic floor disorders
`57425`	Colposcopy with biopsy or endocervical curettage	Example of other outpatient pelvic procedures that may be performed in the same ambulatory surgical setting; not directly related but relevant for scheduling/resource use
`76937`	Ultrasound, guidance for needle placement (e.g., biopsy, aspiration, injection), real-time	Commonly reported when ultrasound guidance is used to localize the external anal sphincter during injection of muscle progenitor cells
`99213`	Office or other outpatient visit for the evaluation and management of an established patient	Typical E/M code used for pre-procedure consultation or post-procedure follow-up visits in the outpatient setting

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