Cheat sheet
CCS Coding Cheat Sheet
Coding Knowledge
- 39-41% of exam
- Code Systems CM Sequencing PCS Build Modifiers + Edits Reimbursement
Coding Documentation
- 18-22% of exam
- Documentation Checks Record Abstraction Support Picker Conflict Resolution
Provider Queries
- 9-11% of exam
- Query Elements Query Picker Leading vs Compliant Clinical Indicators
Regulatory Compliance
- 18-22% of exam
- Compliance Controls POA + HAC Privacy + Ethics Payer Rules
Information Technologies
- 9-11% of exam
- Tech Tools Encoder vs Grouper CAC vs Coder Data Integrity
Quick Facts
- Exam CCS
- Owner AHIMA
- Questions 107 total
- Scored 97 scored
- Pretest 10 unscored
- Time 4 hours
- Pass 300 scaled
- Delivery Pearson VUE center
- Codebooks 2026 CM/PCS/CPT
- Fee $299/$399
Setting First CO
- INPT=CM+PCS | OP/ED=CM+CPT
- INPT: principal OP: first-listed ED: final dx
CM vs PCS CO
ICD-10-CM
- Diagnoses
- All settings
- Provider dx
ICD-10-PCS
- Inpatient procedures
- Seven characters
- Root operation
- Diagnosis vs inpatient procedure
Source Picker CO
- Diagnosis code → ICD-10-CM ( All settings )
- Inpatient procedure → ICD-10-PCS ( Facility )
- Outpatient procedure → CPT ( Facility )
- Supply/drug/service → HCPCS ( Level II )
- Code-pair edit → NCCI ( PTP )
- Unit limit → MUE ( Medically unlikely )
- Inpatient payment → DRG ( MCC/CC )
- Outpatient payment → APC ( OPPS )
Exam Control CO
- Total 107 items
- Scored 97 items
- Pretest 10 random
- Time Four hours
- Pass 300 scaled
- Review Flag allowed
- Site Pearson VUE
- Retake 30-day wait
PCS Seven CO
- Section-System-Root-Part-Approach-Device-Qualifier
- Root: objective Approach: access Device: remains
Inpatient vs Outpatient CO
Inpatient
- Principal dx
- PCS procedures
- Uncertain allowed
Outpatient
- First-listed dx
- CPT/HCPCS
- No rule-out
- Admission vs encounter
Scenario Picker CO
- Admitted inpatient → CM + PCS ( Principal dx )
- Outpatient surgery → CM + CPT ( First-listed )
- ED visit → CM + CPT ( Final dx )
- Observation → Outpatient rules ( First-listed )
- Ruled out outpatient → Symptoms ( No confirmed dx )
- Uncertain inpatient → Code as documented ( Discharge )
Blueprint Weights CO
- Coding 39-41%
- Documentation 18-22%
- Queries 9-11%
- Compliance 18-22%
- Technology 9-11%
- Inpatient 33.3% scenarios
- Outpatient 33.3% scenarios
- ED 33.3% scenarios
Excision vs Resection CO
Excision
- Part removed
- Biopsy common
- Diagnostic qualifier
Resection
- All removed
- Complete body part
- No partial
- Part vs all
Codebooks CO
- CM Diagnosis coding
- PCS Inpatient procedures
- CPT Outpatient procedures
- HCPCS Supplies/drugs/services
- NCCI Edit pairs
- MUE Unit limits
- DRG Inpatient payment
- APC Outpatient payment
Modifier 59 vs 51 CO
59
- Distinct service
- Unbundle support
- NCCI focus
51
- Multiple procedures
- Same session
- Sequencing focus
- Distinct vs multiple
CM Sequencing CO
- Principal Dx After-study reason
- First-listed Outpatient reason
- Secondary Dx Affects care
- Symptoms No definitive dx
- Integral symptom Usually not separate
- Combination code Use when available
- Sequela Residual first
- Laterality Match documentation
PCS Build CO
- Seven chars All required
- Index Table locator
- Table Valid code source
- Root op Procedure objective
- Body part Precise target
- Approach Access route
- Device Remains after
- Qualifier Extra meaning
PCS Root Ops CO
- Excision Cut out part
- Resection Cut out all
- Extraction Pull out
- Drainage Take fluids
- Bypass Alter route
- Restriction Partially close
- Occlusion Completely close
- Replacement New substitute
- Supplement Reinforce part
- Control Stop bleeding
Outpatient Coding CO
- First-listed Visit reason
- Uncertain dx Do not code
- Rule-out Code symptoms
- CPT notes Read parentheticals
- Modifier 25 Separate E/M
- Modifier 59 Distinct service
- RT/LT Body side
- Medical necessity Coverage support
Documentation Checks DO
- Provider note Diagnosis authority
- Operative report Procedure detail
- Discharge summary Final picture
- Pathology Tissue confirmation
- Laterality Side support
- Timing POA support
- Status Active/history
- Conflict Clarify before coding
Query Neutral QU
- Issue + indicators + neutral choices
- No leading Include unable Support from record
Query vs Code QU
Query
- Unclear documentation
- Clinical indicators
- Neutral choices
Code
- Provider documented
- Source supported
- Guideline matched
- Clarify vs assign
Query Picker QU
- Conflicting notes → Query provider ( Clarify )
- Missing specificity → Query provider ( Support exists )
- Clinical indicators only → Query provider ( No diagnosis )
- Unsupported diagnosis → Do not code ( No support )
- Leading answer → Reject query ( Compliance risk )
- Reasonable choices → Compliant query ( Neutral )
Query Elements QU
- Reason Clear issue
- Indicators Clinical support
- Choices Reasonable options
- Other Alternate answer
- Unable Cannot determine
- Neutral Non-leading wording
- Source Record facts
- Impact Coding clarity
POA Codes CO
- Y yes | N no | U unknown | W undetermined
- Y: present N: hospital-acquired U: insufficient W: undetermined
PSI vs HAC CO
PSI
- Safety indicator
- Quality signal
- Documentation driven
HAC
- Hospital acquired
- POA sensitive
- Payment impact
- Quality vs payment
Compliance Controls CO
- HIPAA Privacy/security
- UHDDS Discharge data
- Ethics Truthful coding
- Payer policy Coverage rules
- PSI Safety indicator
- HAC Hospital-acquired condition
- Completeness All required data
- Accuracy Supported codes
POA Indicators CO
- Y Present on admission
- N Not present
- U Insufficient documentation
- W Clinically undetermined
- Exempt POA not required
- Timing Admission moment
- HAC risk Payment impact
Tech Accountability TE
- Encoder helps; grouper groups; coder owns
- Encoder: navigation Grouper: payment CAC: suggestions
Encoder vs Grouper TE
Encoder
- Find codes
- Guideline prompts
- Coder verifies
Grouper
- Groups payment
- DRG/APC impact
- Depends codes
- Code help vs payment
Tech Picker TE
- Find codes → Encoder ( Verify )
- Payment group → Grouper ( DRG/APC )
- Suggested codes → CAC ( Validate )
- Legal record → EHR ( Source )
- Change proof → Audit trail ( Integrity )
Tech Tools TE
- EHR Source record
- Encoder Code navigation
- Grouper Payment grouping
- CAC Suggested codes
- Audit trail Change history
- Interface System exchange
- HITECH Health IT law
- Validation Coder responsibility
CAC vs Coder TE
CAC
- Suggests codes
- Text driven
- Needs review
Coder
- Applies guidelines
- Validates support
- Owns accuracy
- Suggestion vs accountability
Common Traps
Codebook year
- 2026 after May 1 ≠ Wrong books forfeit
Index vs table
- Index locates ≠ Table validates
Principal vs first-listed
- Inpatient after study ≠ Outpatient visit reason
Uncertain diagnosis
- Inpatient may code ≠ Outpatient does not
Clinical indicators
- Support query ≠ Do not diagnose
CAC output
- Software suggests ≠ Coder validates
Modifier use
- Edit allowed ≠ Documentation supports
POA impact
- Timing matters ≠ HAC risk follows
Last Minute
- 1. Weights: 39-41 coding
- 2. Documentation + compliance: 18-22 each
- 3. Queries + tech: 9-11 each
- 4. Scenarios split three ways
- 5. Books: CM, PCS, CPT
- 6. Inpatient: principal + PCS
- 7. Outpatient: first-listed + CPT
- 8. ED: final dx matters
- 9. Index locates; table validates
- 10. Query unclear supported documentation
- 11. Never code from indicators alone
- 12. Software suggests; coder owns
AHIMA CCS Certified Coding Specialist
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