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Z90.49
ICD-10-CM
Status Post Appendectomy

Find information on status post appendectomy diagnosis, including clinical documentation tips, ICD-10 code Z90.89 for personal history of appendectomy, postoperative care, and long-term health implications. This resource covers medical coding guidelines, healthcare provider best practices, and common patient questions regarding post-appendectomy status. Learn about potential complications, follow-up appointments, and when to seek medical advice after an appendectomy.

Also known as

History of Appendectomy
S/P Appendectomy

Diagnosis Snapshot

Key Facts
  • Definition : Condition after surgical removal of the appendix.
  • Clinical Signs : Post-operative pain, abdominal tenderness, possible fever, nausea.
  • Common Settings : Hospital, surgical center, outpatient clinic.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC Z90.49 Coding
Z90.49

Acquired absence of appendix

Status post appendectomy.

K35-K38

Appendicitis

Includes post-surgical complications of appendectomy.

Z85.0

Personal history of appendicitis

Indicates a past appendectomy without current complications.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is there a current complication?

  • Yes

    What is the complication?

  • No

    Is status post appendectomy stated as the reason for encounter?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Post-op appendectomy, uncomplicated
Post-op appendectomy w/ superficial wound infection
Post-op appendectomy w/ intra-abdominal abscess

Documentation Best Practices

Documentation Checklist
  • Appendectomy documentation: Date, type (laparoscopic/open)
  • Post-op diagnosis: Specify status (e.g., uncomplicated)
  • Surgical findings: Describe appendix (e.g., perforated)
  • Complications: Document any (e.g., surgical site infection)
  • Discharge instructions: Include follow-up care plan

Coding and Audit Risks

Common Risks
  • Unspecified Timing

    Coding status post appendectomy without specifying acute, subacute, or chronic creates audit risk and claim denial potential.

  • Missing Complication Codes

    Failure to code post-surgical complications like infection or obstruction with status post appendectomy leads to underpayment.

  • Incorrect Principal Diagnosis

    Status post appendectomy should not be principal if current encounter focuses on a new issue, leading to inaccurate DRG assignment.

Mitigation Tips

Best Practices
  • Code specific post-op complications, not just Z90.79.
  • Document appendectomy method: laparoscopic or open.
  • Specify current status: healed, draining, infected.
  • Query physician for clarification if documentation unclear.
  • Ensure accurate ICD-10 and CPT coding for reimbursement.

Clinical Decision Support

Checklist
  • Confirm appendectomy procedure note in record
  • Verify pathology report consistent with appendectomy
  • Check for post-op complications documentation
  • Review current medications for post-surgical needs

Reimbursement and Quality Metrics

Impact Summary
  • Status Post Appendectomy reimbursement hinges on accurate ICD-10 coding (K35.82) and appropriate CPT codes for associated procedures like laparoscopic (44970) or open appendectomy (44950). Coding errors impact claim denial rates and revenue cycle.
  • Quality metrics for Status Post Appendectomy include surgical site infection (SSI) rates, readmission rates within 30 days, and length of stay. Accurate documentation is crucial for performance reporting and value-based care.
  • Timely coding and billing for Status Post Appendectomy minimize claim processing time, accelerating reimbursement and improving cash flow. Denial management processes should be in place to address coding discrepancies.
  • Post-operative complication coding for Status Post Appendectomy directly affects reimbursement and quality scores. Accurate capture of complications like peritonitis or abscess (I97.0) is essential for risk adjustment.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Post-op appendicitis: Z90.09
  • Acute appendectomy: K35.80
  • Ruptured appendix: K35.81
  • Complicated appendectomy: K35.89
  • Appendicitis history: Z85.0

Documentation Templates

Status post appendectomy.  Patient presents for postoperative follow-up after appendectomy.  Surgical history includes laparoscopic appendectomy performed on (date).  Indication for surgery was acute appendicitis with right lower quadrant abdominal pain, rebound tenderness, and elevated white blood cell count.  Preoperative diagnosis confirmed by abdominal CT scan demonstrating appendiceal inflammation.  Postoperative course was uncomplicated.  Incisions are well-healing, with no signs of infection, such as erythema, edema, or purulent drainage.  Patient reports minimal postoperative pain, well-controlled with oral analgesics.  Bowel function has returned to normal.  Diet is as tolerated.  Patient is ambulating without difficulty.  Physical examination reveals a soft, non-tender abdomen with normal bowel sounds.  No evidence of hernia or other complications.  Plan is to continue routine postoperative care, including wound care and pain management as needed.  Patient advised to return to normal activity as tolerated, with avoidance of strenuous activity for (duration).  Follow-up appointment scheduled in (duration) for reassessment.  Discharge diagnosis: Status post uncomplicated laparoscopic appendectomy.  Keywords: Appendectomy, appendicitis, post-operative care, surgical follow-up, wound healing, abdominal pain, laparoscopic surgery, postoperative complications, right lower quadrant pain, rebound tenderness, white blood cell count, CT scan, incision, infection, erythema, edema, purulent drainage, analgesics, bowel function, ambulation, hernia, discharge planning, medical coding, ICD-10, CPT code.