Perianal / Perirectal Abscess Incision and Drainage
[Right / left] [perianal / ischioanal (ischiorectal)] abscess
Same
Incision and drainage of [right / left] [perianal / ischioanal (ischiorectal)] abscess
[***, MD/DO]
[Resident name]
[General / spinal / MAC / local with sedation]
The patient presented with a symptomatic [right / left] [perianal / ischioanal] abscess after [X] days of symptoms. Examination under anesthesia with incision and drainage was recommended. Risks including recurrent abscess, sphincter injury, and subsequent fistula-in-ano formation (approximately 30-50%) were discussed. Informed consent was obtained.
A [right / left] [perianal / ischioanal (ischiorectal)] abscess measured approximately [X] cm and contained [purulent / bloody-purulent] fluid. Loculations [were / were not] present. The sphincter complex was not entered during drainage.
The patient was positioned in the [prone jackknife / lithotomy] position. A surgical timeout confirmed the patient, procedure, operative site, allergies, and antibiotic plan. The perianal area was prepped and draped in sterile fashion. Examination under anesthesia confirmed a [right / left] [perianal / ischioanal] abscess.
A [radial / elliptical] incision was made over the point of maximal fluctuance and kept as close to the anal verge as the anatomy allowed. The opening was enlarged sufficiently to maintain drainage. Approximately [X] mL of [purulent / bloody-purulent] fluid was evacuated. The cavity was gently explored, loculations were disrupted without creating a tract through uninvolved tissue, and the cavity was irrigated with warm saline.
The cavity was [left open without packing / lightly packed with plain gauze for temporary hemostasis]. An external dry dressing was applied. Wound care and sitz-bath instructions were provided. The patient tolerated the procedure well.
None
[None / Abscess fluid sent for culture]
Minimal
None
Patient taken to [PACU / the recovery area] in stable condition. [Discharged home / Admitted] with wound-care and sitz-bath instructions. Follow-up planned in [interval] for wound review; persistent drainage or recurrent symptoms will prompt evaluation for fistula-in-ano.
Epic SmartPhrase Version
PREOPERATIVE DIAGNOSIS: [Right / left] [perianal / ischioanal (ischiorectal)] abscess
POSTOPERATIVE DIAGNOSIS: Same
PROCEDURE PERFORMED: Incision and drainage of [right / left] [perianal / ischioanal] abscess
ATTENDING SURGEON: ***, MD/DO
FIRST ASSISTANT: ***
ANESTHESIA: [General / spinal / MAC]
INDICATIONS: The patient is a .PTAGE-year-old .PTSEX with a [right / left] [perianal / ischioanal] abscess for *** days. Risks including recurrent abscess, sphincter injury, and subsequent fistula-in-ano formation (approximately 30-50%) were discussed. Informed consent obtained.
FINDINGS: [Right / left] [perianal / ischioanal] abscess, *** cm. *** mL [purulent / bloody-purulent] fluid drained. Loculations [present / absent]. The sphincter complex was not entered during drainage.
DESCRIPTION OF PROCEDURE:
Patient positioned [prone jackknife / lithotomy]. Surgical timeout completed. Perianal area prepped and draped. EUA confirmed a [right / left] [perianal / ischioanal] abscess. A [radial / elliptical] incision was made over maximal fluctuance close to the anal verge and enlarged for adequate drainage. *** mL fluid was evacuated. The cavity was gently explored, loculations were disrupted, and the cavity was irrigated with warm saline.
The cavity was [left open without packing / lightly packed with plain gauze for temporary hemostasis]. External dressing applied. Patient tolerated the procedure well.
ESTIMATED BLOOD LOSS: Minimal
SPECIMENS: [None / Abscess fluid for culture]
COMPLICATIONS: None
DRAINS: None
DISPOSITION: Patient taken to [PACU / recovery] in stable condition. [Discharged home / Admitted] with wound-care and sitz-bath instructions. Follow-up in *** for wound review; persistent drainage or recurrence will prompt fistula evaluation.
Signed: .ME, .MYDEGREE
.TODAYVariants
Fistulotomy for a clearly defined low tract
Anoscopy identified an internal opening at the [X] o'clock position at the dentate line. A clearly established [subcutaneous / low intersphincteric / low transsphincteric] fistula was probed without force. Baseline sphincter function was documented, and the tract involved [no external sphincter / less than one-third of the external sphincter]. The tissue over the probe was divided, the tract was curetted, and hemostasis was obtained. [The wound edges were marsupialized with [suture].]
Loose draining seton for a complex tract
Anoscopy identified an internal opening at the [X] o'clock position at the dentate line. A [high transsphincteric / complex] fistula was established, and lay-open fistulotomy was not performed because of continence risk. A loose draining [vessel loop / silastic seton] was passed through the tract and secured without tension for staged management.
Catheter drainage for a selected cavity
After the cavity was evacuated and loculations were disrupted, a [Pezzer / Malecot] catheter was positioned to provide dependent drainage and secured to the skin. The planned catheter-removal criteria and follow-up were documented.
Horseshoe abscess
The abscess crossed the midline through the deep postanal space and extended into the [right / left / bilateral] ischioanal fossa. A posterior midline incision drained the deep postanal component, and [right / left / bilateral] counter-incisions provided dependent drainage of the lateral extensions. [A posterior midline partial sphincterotomy and loose draining seton were used as part of a modified Hanley approach.] A primary lay-open fistulotomy across a transsphincteric tract was not performed.
Supralevator abscess
The drainage route was selected according to the source of the supralevator cavity: [an intersphincteric origin was drained internally into the anal canal / an upward extension from the ischioanal fossa was drained externally through that space / a pelvic or abdominal source was drained [transabdominally / transrectally / percutaneously]]. No additional tract was created through an uninvolved space.
Crohn perianal abscess
The abscess was drained without lay-open fistulotomy. [A loose draining seton was placed through a clearly established tract to maintain drainage.] Crohn disease activity, current medical therapy, and the plan for coordinated colorectal and gastroenterology follow-up were documented.
Charting Tips
- Document the abscess by anatomic space, incision location, amount and character of drainage, loculations, and every extension treated.
- State whether the cavity was left unpacked or briefly packed for hemostasis. Use the catheter variant when a Pezzer or Malecot was intentionally left for ongoing drainage.
- If a fistula was evaluated or treated, record anoscopy findings, the established tract, sphincter involvement, and why further probing was avoided when anatomy was uncertain.
- For fistulotomy, document baseline continence and estimated sphincter involvement. For a seton, document that it was loose and intended for drainage or staged management.
- Record the reason for culture or postoperative antibiotics when used and the follow-up plan for persistent drainage or recurrent symptoms.
- For horseshoe or supralevator disease, document the source, every space drained, and the selected route.
Documentation & Reimbursement Considerations
- Primary service: Report Perianal / Perirectal Abscess Incision and Drainage as the primary service when it is the definitive operation performed.
- Do not bill fistulotomy unless the tract is definitively identified and divided. Presumed fistula at the time of abscess I&D is documented but not billed separately.
- Document seton type (cutting vs. draining), material, and position.
- Recurrent abscess drainage is a new procedure. Follow-up fistula evaluation beyond the global period is separately billable.
- Horseshoe abscess (bilateral ischiorectal involvement with posterior communication) is more complex than a simple abscess. Document the anatomy, counter-incisions, and extent of drainage. Supports increased-service reporting for increased complexity if substantially more difficult than standard.