What is the ICD-10 code for history of appendectomy?

The ICD-10 code for history of appendectomy is Z90.49, which indicates the acquired absence of the appendix following surgery.

When should Z90.49 be used?

Use Z90.49 to document the absence of the appendix in a patient's history when there are no current complications.

ICD-10 Coding for History of Appendectomy(Z90.49, T81.30, T81.3)

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Learn about the ICD-10 coding for history of appendectomy, including when to use Z90.49, documentation requirements, and common coding pitfalls.

Also known as:

Post-Appendectomy StatusAbsence of Appendix

Related ICD-10 Code Ranges

Complete code families applicable to History of Appendectomy

Z00-Z99Primary Range

Factors influencing health status and contact with health services

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
Z90.49	Acquired absence of other specified parts of digestive tract	Use when documenting the absence of the appendix in a patient's medical history without current complications.	Operative report confirming appendectomy Imaging studies showing absence of appendix
T81.30XA	Disruption of wound, unspecified, initial encounter	Use when there is a current complication such as wound dehiscence following appendectomy.	Clinical notes describing wound disruption Physical examination findings

Primary ICD-10-CM Codes

Acquired absence of other specified parts of digestive tract

Z90.49Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Disruption of wound, unspecified, initial encounterT81.30

Use for current complications related to surgical wounds, not for historical absence.

Acquired absence of other specified parts of digestive tractZ90.49

Documentation & Coding Risks

Avoid these common issues when documenting History of Appendectomy.

Vague surgical history documentation

Impact

Clinical: Misinterpretation of patient's surgical history., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials.

Mitigation

Use specific terms like 'status post appendectomy'., Include operative details.

Using Z90.49 as a principal diagnosis

Impact

Reimbursement: May lead to claim denials if used incorrectly., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate representation of patient's current condition.

Mitigation

Always use Z90.49 as a secondary code to indicate history.

Confusing history with current complications

Impact

Reimbursement: Incorrect coding can affect DRG assignment., Compliance: Potential audit risk., Data Quality: Misleading data on patient health status.

Mitigation

Use T81.30XA for current complications and Z90.49 for history.

Incorrect code sequencing

Impact

Using Z90.49 as a primary diagnosis can trigger audits.

Mitigation

Ensure Z90.49 is always secondary to active conditions.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with Z90.49.

Primary Code

Z90.49

Acquired absence of other specified parts of digestive tract

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ICD-10 codes4

Coding risks4

FAQs2

ICD-10 Coding for History of Appendectomy(Z90.49, T81.30, T81.3)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for history of appendectomy?

When should Z90.49 be used?

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