JB
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Byrn, Colon & Rectal Surgeon (Proctologist) in Ann Arbor, MI?
Dr. John Byrn, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Ann Arbor, MI with 2 additional practice locations. He is board certified. Dr. Byrn is fluent in English, and is currently seeing new patients. Dr. Byrn’s practice accepts Medicaid, Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Byrn’s office.
What are Areas of Expertise for Dr. Byrn?
Dr. John Byrn, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Byrn empowers patients to confidently navigate their health journey, specializing in Anorectal Disorders, Colon & Rectal Cancer, Minimally Invasive Surgery, or comprehensive wellness support. Serving the Ann Arbor/MI community, Dr. Byrn is dedicated to enhancing lives through expert, patient-centered care.
Is Dr. Byrn board certified as a Colon & Rectal Surgeon (Proctologist)?
Yes, Dr. John Byrn, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery
What languages does Dr. Byrn speak?
Dr. Byrn and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Byrn treat?
As a Colon & Rectal Surgeon (Proctologist), Dr. Byrn diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Byrn. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
- Colon Cancer
- Ascending Colon Cancer
- Bowel Cancer
- Colorectal Carcinoma
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
- C182: Malignant neoplasm of ascending colon
Also known as:
- Ileostomy Care
- Colostomy Care
- Ostomy
- Ileostomy Management
- Small Intestine Stoma Care
- Ileostomy Follow-up
- Stoma Care
- Bowel Diversion Care
- Ostomy Bag Management
ICD-10 Codes:
- Z432: Encounter for attention to ileostomy
- Z433: Encounter for attention to colostomy
Also known as:
- Third Degree Hemorrhoids
- Hemorrhoidal Skin Tags
- Hemorrhoids
- Prolapsed hemorrhoids
- Grade 3 hemorrhoids
- Severe hemorrhoids
- Anal skin tags
- Perianal skin tags
- Leftover hemorrhoid skin
- Piles
- Anal veins
- Swollen rectal veins
ICD-10 Codes:
- K642: Third degree hemorrhoids
- K644: Residual hemorrhoidal skin tags
- K648: Other hemorrhoids
Also known as:
- Anal Fistula
- Anal Dysplasia
- Anal Disorder
- Fistulas
- Perianal Fistula
- Fistula-in-Ano
- Abnormal Anal Tract
- Abnormal anal cells
- Precancerous anal changes
- Anal epithelial dysplasia
ICD-10 Codes:
- K603: Anal fistula
- K6282: Dysplasia of anus
Also known as:
- Crohn's Disease of the Small Intestine
- Crohn's Disease of the Large Intestine with Fistula
- Crohn's Disease
- Crohn’s Disease
- Fistulas
- Regional Enteritis
- Inflammatory Bowel Disease (IBD)
- Ileitis
- Crohn's Colitis with Fistula', 'Large Bowel Crohn's with Fistula
- Inflammatory Bowel Disease (IBD) with Fistula
ICD-10 Codes:
- K5000: Crohn's disease of small intestine without complications
- K50113: Crohn's disease of large intestine with fistula
Also known as:
- Digestive System Surgery Aftercare
- After Surgery
- Post-gastrointestinal surgery care
- Stomach surgery aftercare
- Bowel surgery recovery
ICD-10 Codes:
- Z48815: Encounter for surgical aftercare following surgery on the digestive system
Also known as:
- Rectal Prolapse
- Pelvic Floor Disorder
- Rectal Disorder
- Protruding Rectum
- Bowel Prolapse
- Rectal Eversion
ICD-10 Codes:
- K623: Rectal prolapse
Also known as:
- Intestine Diverticulitis
- Diverticulosis and Diverticulitis
- Inflamed Bowel Diverticula
- Bowel Diverticular Inflammation
ICD-10 Codes:
- K5792: Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding
Also known as:
- Other Anal and Rectal Condition
- Anal Disorder
- Rectal Disorder
- Proctitis
- Anal Disorders
- Rectal Disorders
ICD-10 Codes:
- K6289: Other specified diseases of anus and rectum
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Anal Cancer
- Anal Cancer Treatment (PDQ®)
- Anus Cancer
- Anal Carcinoma
ICD-10 Codes:
- C210: Malignant neoplasm of anus, unspecified
Also known as:
- Cancer Follow-up Exam
- Cancer
- Post-cancer treatment checkup
- Malignancy surveillance
- Oncology follow-up
ICD-10 Codes:
- Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm
Also known as:
- Intestinal Obstruction
- Bowel Obstruction
- Blocked Intestines
- Gut Blockage
ICD-10 Codes:
- K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
Also known as:
- Anal Fissure
- Anal Disorder
- Rectal Tear
- Fissure in Anus
- Perianal Fissure
ICD-10 Codes:
- K602: Anal fissure, unspecified
What procedures does Dr. Byrn perform?
As a Colon & Rectal Surgeon (Proctologist), Dr. Byrn performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Byrn. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Anoscopy (Diagnostic)
- Anoscopy
- Anal Canal Exam
- Rectal Scope Exam
- Anus Diagnostic Procedure
CPT Codes:
- 46600: Anoscopy; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Biopsy
- Colonoscopy Through Stoma
- Colonoscopy with Polyp Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Stoma Colonoscopy
- Diagnostic Stoma Scope
- Colostomy Colonoscopy
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 44388: Colonoscopy through stoma; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Hemorrhoid Removal with Rubber Band Ligation
- Rubber Band Ligation for Hemorrhoids
- Internal Hemorrhoid Ligation
- Banding of Hemorrhoids
- Hemorrhoid Banding
CPT Codes:
- 46221: Hemorrhoidectomy, internal, by rubber band ligation(s)
Also known as:
- Anal Fistula Surgery
- Anal Skin Tag Removal
- Fistulectomy
- Fistulotomy
- Perianal Fistula Repair
- Anal Fistula Repair
- Intersphincteric Fistula Repair
- Perianal Fistula Surgery
- Anal Papilla Excision
- Perianal Skin Tag Removal
- Anal Lesion Excision
CPT Codes:
- 46270: Surgical treatment of anal fistula (fistulectomy/fistulotomy); subcutaneous
- 46280: Surgical treatment of anal fistula (fistulectomy/fistulotomy); transsphincteric, suprasphincteric, extrasphincteric or multiple, including placement of seton, when performed
- 46275: Surgical treatment of anal fistula (fistulectomy/fistulotomy); intersphincteric
- 46220: Excision of single external papilla or tag, anus
Also known as:
- Seton Placement
- Fistula Seton Insertion
- Drainage Seton Placement
- Anal Fistula Treatment
CPT Codes:
- 46020: Placement of seton
Also known as:
- Surgical Anorectal Exam with Anesthesia
- Anesthesia
- Diagnostic anorectal exam under anesthesia
- Rectal exam with general anesthesia
- Anorectal surgery for diagnosis
CPT Codes:
- 45990: Anorectal exam, surgical, requiring anesthesia (general, spinal, or epidural), diagnostic
Also known as:
- Removal of Multiple Hemorrhoids
- Hemorrhoidectomy
- Internal and External Hemorrhoid Surgery
- Piles Removal Surgery
CPT Codes:
- 46260: Hemorrhoidectomy, internal and external, 2 or more columns/groups;
Also known as:
- Anoscopy with Biopsy
- Biopsy
- Anoscopy
- Anal Scope with Tissue Sample
- Rectal Biopsy
- Anorectal Exam with Biopsy
CPT Codes:
- 46606: Anoscopy; with biopsy, single or multiple
Also known as:
- Removal of Anal Lesions (Electrocautery)
- Anal Wart Removal (Electrocautery)
- Electrosurgical Destruction of Anal Lesions
- Anus Lesion Excision
- Electrodessication of Anal Condyloma
CPT Codes:
- 46910: Destruction of lesion(s), anus (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), simple; electrodesiccation
Also known as:
- Laparoscopic Appendectomy
- Minimally Invasive Appendectomy
- Keyhole Appendectomy
- Scope Appendectomy
CPT Codes:
- 44970: Laparoscopy, surgical, appendectomy
Also known as:
- Anal Lesion Excision
- Removal of Anal Warts
- Surgical Excision of Anal Lesions
- Anus Lesion Removal
CPT Codes:
- 46922: Destruction of lesion(s), anus (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), simple; surgical excision
Also known as:
- Anal Biopsy
- Rectal Wall Biopsy
- Anorectal Biopsy
- Anal Tissue Sample
CPT Codes:
- 45100: Biopsy of anorectal wall, anal approach (eg, congenital megacolon)
Also known as:
- Anal Sphincter Nerve Block
- Internal Anal Sphincter Chemodenervation
- Anal Sphincter Injection
- Botox for Anal Fissure
- Chemical Denervation of Anal Muscle
CPT Codes:
- 46505: Chemodenervation of internal anal sphincter
Also known as:
- High-Resolution Anoscopy with Biopsy
- Anoscopy
- HRA with Biopsy
- Anal Canal Magnification Exam
- Anorectal Biopsy
CPT Codes:
- 46607: Anoscopy; with high-resolution magnification (HRA) (eg, colposcope, operating microscope) and chemical agent enhancement, with biopsy, single or multiple
Also known as:
- Hemorrhoid Removal Surgery
- Hemorrhoidectomy
- Piles Surgery
- Internal and External Hemorrhoid Excision
CPT Codes:
- 46255: Hemorrhoidectomy, internal and external, single column/group;
Also known as:
- Drainage of Perianal Abscess
- Perianal Abscess Incision
- Anal Abscess Drainage
- Superficial Perianal Abscess Treatment
CPT Codes:
- 46050: Incision and drainage, perianal abscess, superficial
Also known as:
- Flexible Sigmoidoscopy with Biopsy
- Colorectal Cancer Screening Tests
- Sigmoid Colon Scope with Biopsy
- Lower Endoscopy with Tissue Sample
- Flexible Sigmoidoscopy and Biopsy
- Rectum and Lower Colon Exam
CPT Codes:
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
Also known as:
- Chemical Cauterization of Granulation Tissue
- Proud flesh removal
- Chemical burn for wound overgrowth
- Granulation tissue treatment
- Wound cautery
CPT Codes:
- 17250: Chemical cauterization of granulation tissue (ie, proud flesh)
Also known as:
- Skin Biopsy (Punch)
- Skin Biopsy
- Punch Biopsy
- Skin Lesion Biopsy
- Dermal Punch Biopsy
CPT Codes:
- 11104: Punch biopsy of skin (including simple closure, when performed); single lesion
Does Dr. Byrn accept my insurance?
Dr. Byrn accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Byrn accept in Ann Arbor, MI?
Dr. Byrn in Ann Arbor, MI accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Michigan
California Foundation for Medical Care
Carpenters Funds Administrative Office (CA)
CVS Health (formerly Aetna)
Humana
Medicare
Molina
Spectrum / Priority Health
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Byrn's office located?
What is Dr. Byrn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Byrn's National Provider Identifier (NPI) number is 1174798235.
What common questions do patients ask about Dr. Byrn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Byrn
What is Dr. John Byrn's specialty?
Dr. Byrn is a Colon & Rectal Surgeon (Proctologist) near Ann Arbor, MI. A colon and rectal surgeon possesses the expertise to diagnose and treat a variety of ailments affecting the intestinal tract, including the colon, rectum, anal canal, and perianal area, through both medical and surgical interventions. Furthermore, this professional also engages with other organs and tissues, including the liver, urinary system, and female reproductive system, that are relevant to primary intestinal disorders. Contact Dr. Byrn to book an appointment today.
Is this Dr. John Byrn affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Byrn is affiliated with University Hospital - Michigan Medicine which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Colon & Rectal Surgeon (Proctologist)?
Explore Colon & Rectal Surgeon (Proctologist) with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is John Byrn accepting new patients in Ann Arbor, MI?
Yes, Dr. John Byrn is accepting new patients at this time.
Does Dr. John Byrn offer online booking?
Please contact Dr. Byrn's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Byrn?
Please contact Dr. Byrn's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Byrn have?
Dr. John Byrn is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.
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