Coding errors are costly. Each incorrect code carries the risk of a rejected claim, a delayed payment, or worse — a finding in a CCHI audit that lowers your classification score. This guide walks through the most common ICD-10-AM errors found in Saudi hospitals and provides concrete solutions.
Error 1: Using Unspecified Codes When Specific Codes Exist
The problem: Coders assign a general, unspecified code when a more specific code is available. For example, using I10 (Essential hypertension) when the documentation supports I11.9 (Hypertensive heart disease without heart failure).
Why it happens: Time pressure, incomplete documentation, or lack of familiarity with the full code set.
The fix:
- Train coders to query physicians when documentation is vague
- Implement encoder software queries that prompt for specificity
- Create department-specific code reference sheets with common conditions and their most specific codes
Error 2: Missing Secondary Diagnoses
The problem: The coder correctly codes the primary diagnosis but fails to capture relevant secondary diagnoses that affect DRG assignment and severity classification. For example, coding pneumonia without coding the patient's diabetes even though it is documented in the chart.
Why it happens: Focus on the reason for admission without reviewing the full medical history documented in the record.
The fix:
- Implement a checklist that coders must complete before finalizing a record
- Conduct joint reviews between clinical documentation specialists and coders
- Use a problem list approach — maintain and update an active problem list for each patient
Error 3: Confusing Similar Codes
The problem: Selecting a code that is clinically similar but technically wrong. A typical example is using K29.7 (Gastritis, unspecified) instead of K25.9 (Gastric ulcer, unspecified) when the endoscopy report clearly shows an ulcer.
Why it happens: Limited anatomy and pathophysiology knowledge, or relying on memory instead of looking up the code.
The fix:
- Provide specialty-specific anatomy and pathophysiology refreshers for coders
- Encourage routine use of the coding book or encoder rather than memorized codes
- Build a "frequently confused codes" reference sheet
Error 4: Incorrect Laterality
The problem: Not specifying left versus right when the diagnosis requires it. For example, M17.0 (Bilateral primary osteoarthritis of knee) when the patient only has right knee involvement, or coding M17.11 (Unilateral primary osteoarthritis, right knee) as M17.12 (left knee).
Why it happens: The documentation may not clearly state laterality, or the coder overlooks it under time pressure.
The fix:
- Standardize documentation templates to include laterality fields
- Conduct periodic audits focused specifically on laterality errors
- Implement encoder alerts when a code with laterality options is selected
Error 5: Coding from the Discharge Summary Only
The problem: Using only the discharge summary to assign codes instead of reviewing the full medical record including progress notes, operative reports, laboratory results, and radiology findings.
Why it happens: Time constraints and the assumption that the discharge summary captures everything.
The fix:
- Establish a mandatory documentation review workflow
- Set minimum time standards per record based on case complexity
- Use audit data to show the correlation between record review depth and error rate
Error 6: Sequencing Errors
The problem: Listing codes in the wrong order. The principal diagnosis is not first, or secondary diagnoses are not sequenced according to their clinical significance and resource consumption.
Why it happens: Misunderstanding of coding guidelines for code sequencing, particularly for conditions that require specific sequencing rules.
The fix:
- Provide specific training on CCHI and ACS sequencing rules
- Create quick-reference cards for common sequencing scenarios
- Use encoder software that guides correct sequencing
Error 7: Coding Complications That Are Not Documented
The problem: Assigning a complication code (like T81.4 for infection following a procedure) when the physician has not explicitly documented a complication. This is a common cause of audit findings because it can appear as upcoding.
Why it happens: Coders infer a complication from the clinical picture without a clear physician statement.
The fix:
- Strictly enforce the rule that only documented conditions are coded
- Query the physician for clarification if a complication seems present but is not documented
- Maintain a log of physician queries and responses for audit purposes
Building a Sustainable Quality Program
Correcting these errors requires more than training — it demands a systematic approach:
| Tool | Purpose | Frequency |
|---|---|---|
| Error log | Track errors by type, coder, and department | Real-time |
| Monthly audit | Measure accuracy and identify trends | Monthly |
| Coder scorecard | Provide individual feedback | Monthly |
| Training sessions | Address specific knowledge gaps | Quarterly |
| Process review | Identify systemic issues | Semi-annual |
Conclusion
The seven errors above account for the majority of coding accuracy issues in Saudi hospitals. By systematically addressing each one through training, process changes, and technology, most facilities can reach the 95% accuracy threshold within three to six months.
ProMedInsure offers coding accuracy improvement programs tailored to your hospital's specific error patterns. Contact us for a diagnostic audit.