For Clinical Documentation Improvement Specialists ·
What you'll accomplish
By the end of this guide, you'll be able to use Claude to draft structured clinical justification letters for RAC/MAC audit appeals in 20–30 minutes instead of 2–3 hours. You'll have a repeatable process that produces consistent, guideline-grounded appeals — and you'll have a reusable template for your most common denial categories.
What you'll need
Go to {{tool:Claude.url}} and sign in. If you don't have an account, click Start for free and create one. Free tier supports this use case well.
This is the most important step. Before using Claude, write out the clinical facts in a way that contains NO protected health information:
Remove: Patient name, MRN, date of birth, admission/discharge dates, attending physician name, facility name Keep: Diagnosis, relevant clinical indicators (lab values, vital signs), treatment provided, timeline in relative terms (e.g., "Day 2 of admission"), denial code/rationale
Start a new conversation in Claude and paste the following setup, filling in your case specifics:
I am a CDI specialist drafting a clinical justification letter to appeal a [RAC/MAC/payer] denial.
Denied: [code or DRG, e.g., "Sepsis - ICD-10-CM A41.9" or "DRG 871"]
Denial rationale: [paste the denial reason from the denial letter]
De-identified clinical facts:
- Admitting diagnosis: [diagnosis]
- Key clinical indicators: [relevant labs, vitals, symptoms]
- Treatment: [what was ordered and administered]
- Timeline: [when key events occurred, relative to admission]
Please draft a formal clinical justification letter that:
1. Acknowledges the denial and states our position
2. Summarizes the clinical evidence supporting the coding
3. Cites applicable ICD-10-CM Official Guidelines, Coding Clinic references, or clinical practice guidelines
4. Requests reconsideration with a professional but assertive tone
5. Follows standard appeal letter format
Claude will generate a 400–700 word appeal letter. Review for:
This is critical: if Claude cites a specific Coding Clinic issue or ICD-10 guideline section, look it up and verify it exists and says what Claude claims. Do not submit an appeal with incorrect citations.
Add your facility letterhead, the actual case identifiers, attending physician information, and your signature. Submit through your normal appeal channel.
What you should see: A formal, structured letter of 400–700 words with an opening statement, clinical narrative, guideline citations, and a clear request for reconsideration. Troubleshooting: If Claude's draft is too generic, give it more specific clinical details: "The key clinical evidence is [X]. Make sure to emphasize this in the letter."
Respiratory failure appeal:
Appeal denied respiratory failure code [ICD-10]. Denial reason: [reason]. Clinical facts: patient required [O2 support/intubation], ABG values [if available], clinical indicators [list]. Cite ICD-10-CM Official Guidelines for respiratory failure coding.
CHF with systolic/diastolic specificity appeal:
Appeal denied CHF specificity code [ICD-10]. Denial: documentation does not support [systolic/diastolic]. Clinical facts: echo findings [EF value], clinical presentation, treatment. Request reinstatement based on documented echo findings.
Malnutrition appeal:
Appeal denied malnutrition code [ICD-10]. Clinical facts: weight loss [amount/timeframe], albumin [value], intake assessment findings, nutrition support ordered. Cite ASPEN clinical criteria and ICD-10-CM guidelines for malnutrition coding.