Encounter — James Smith

Follow Up | Dr. Sarah Chen | 2/18/2026

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Received

CDI Review

AI Coding

Compliance

Denial Check

Ready

Submitted

CDI Review

2.1s

AI Coding

4.8s

Compliance Check

1.9s

Denial Prevention

1.4s

Clinical Note

HPI: James Smith is a 67-year-old male presenting for follow-up of right knee osteoarthritis and diabetes management. He reports persistent right knee pain rated 6/10, worse with stairs and prolonged walking. Knee swelling intermittent, improved with ice and NSAIDs. He has a history of right total knee replacement (2023) with good initial outcome but progressive contralateral OA. Diabetes well-controlled on metformin, last A1c 6.8%. EXAM: Right knee: mild effusion, no erythema or warmth. ROM: flexion 115°, extension -5°. Varus alignment 3°. Crepitus with passive motion. Ligaments stable. Left knee: prior TKA well-fixed, full ROM, no instability. Gait antalgic, favoring right side. BMI 31.2. ASSESSMENT: 1. Primary osteoarthritis, right knee (M17.11) — progressive, failed conservative management 2. Type 2 diabetes mellitus without complications (E11.9) — stable on current regimen 3. Presence of left artificial knee joint (Z96.652) — status post TKA 2023, doing well PLAN: 1. Right knee: corticosteroid injection today (triamcinolone 40mg + 4mL lidocaine 1%). Discussed surgical options including TKA if injection provides only temporary relief. Referred to PT for quad strengthening. 2. Diabetes: continue metformin 1000mg BID. Recheck A1c in 3 months. 3. Return in 6 weeks to reassess right knee response to injection. If inadequate, schedule surgical consultation.

Coding Results

ICD-10-CM Diagnoses

M17.11Primary osteoarthritis, right knee

96%

Documented in assessment as 'Primary osteoarthritis, right knee' with supporting exam findings: effusion, crepitus, varus alignment, and failed conservative management.

E11.9Type 2 diabetes mellitus without complications

88%

Listed in assessment with A1c 6.8% and current metformin regimen. No documented complications — retinopathy, nephropathy, and neuropathy screening not mentioned.

Z96.652Presence of left artificial knee joint

94%

History of left TKA (2023) documented in HPI and confirmed on exam as 'well-fixed, full ROM.' Status code required for ongoing management context.

Evidence from the note

“Primary osteoarthritis, right knee (M17.11) — progressive, failed conservative management” supports M17.11. “corticosteroid injection today (triamcinolone 40mg + 4mL lidocaine 1%)” supports CPT 20610 and J3301 × 4 units. Every code MedveriCodex suggests is anchored to a specific excerpt like this one.

CPT Procedures

99214Office visit, established patient, moderate complexity

95%

Moderate MDM: 2 chronic conditions (OA + diabetes), prescription drug management (metformin), and ordering of injection procedure. Meets 2 of 3 MDM elements for level 4.

20610-RTArthrocentesis, aspiration and/or injection, major joint

93%

Intra-articular injection of right knee documented with medication (triamcinolone 40mg + lidocaine). Major joint injection code with -RT modifier for right side laterality.

Payer Validation Output

Medicare Part B — Medicare FFS — Traditional Medicare (FL) — MAC: First Coast Service Options (JN)

Exact Match

1Suggested Codes(clinical, payer-agnostic)

3 ICD-10 diagnoses and 2 CPT procedures shown above. Each is anchored to a specific note excerpt.

2Payer Validation(payer-specific checks)

INFOLCD L33580 — Joint Injection Medical NecessityOfficial Rule

Conservative therapy trial documented (NSAIDs, activity modification). Meets LCD medical necessity criteria for corticosteroid knee injection.

Codes: 20610M17.11

WARNModifier -25 DocumentationObserved Pattern

E/M (99214) billed same day as injection (20610). Modifier -25 applied, but First Coast JN has denied this combination when E/M note does not clearly document a separately identifiable service beyond the procedure decision.

Codes: 9921420610-25

Verify E/M note documents a distinct evaluation (diabetes management, contralateral knee, surgical planning) separate from the procedure decision.

PASSNCCI Edits ClearOfficial Rule

No Column 1/Column 2 conflicts between 99214, 20610, and J3301.

PASSJ3301 Units Match DoseVerified Rule

40mg triamcinolone administered, billed as 4 units (1 unit = 10mg). Matches documentation.

Codes: J3301

Related Payer Insights (1)

INFOBMI-Related Pre-Injection Note (UHC pattern)Related Payer Hint

Similar behavior observed in related payer

Observed in: UnitedHealthcare Commercial. This is not a controlling rule for your payer — awareness only.

UnitedHealthcare plans in some regions have recently denied 20610 claims when BMI >30 lacks a note on weight management discussion. Not a Medicare rule — included for awareness only.

3Payer-Specific Risks

22%

Denial Risk Score

Low risk — excludes related payer hints

Modifier -25 audit exposureMedium

First Coast JN has been flagging -25 on knee injections in 2026 — make sure the E/M component is unambiguously separately identifiable.

4Missing Documentation

No missing documentation identified.

5Submission Readiness

Ready to Submit

Clean claim. All payer-specific checks passed or are informational. Ready to submit to Medicare Part B (First Coast JN).

Details

Patient: James Smith
DOB: 3/15/1958
Provider: Dr. Sarah Chen
Specialty: Orthopedics
Payer: Medicare
Visit Type: Follow Up
Date of Service: 2/18/2026
Revenue Impact: $312

CDI Review

PASS

Documentation Quality88%

Findings (2)

Laterality properly documented throughout note — right knee consistently specified in HPI, exam, assessment, and plan
Recommendation: Consider adding BMI documentation (currently 31.2) as a separate diagnosis (Z68.31) for HCC risk adjustment capture on Medicare patients

Compliance Check

96/ 100

PASS

NCCI Conflicts: None
Modifier: -RT (right side) validated against laterality in clinical note and diagnosis M17.11
OIG Risk: Low

No NCCI edit conflicts between 99214 and 20610-RT
Modifier -RT validated: laterality consistent across note, diagnosis (M17.11 = right knee), and procedure
OIG Work Plan: no current orthopedic injection targets for this code combination
E/M level 4 supported by documented MDM complexity — no upcoding risk

Denial RiskLow Risk (15%)

Payer: Medicare

No denial risk flags identified.