icd-cpt-coding

name: icd-cpt-coding description: > Medical coding lookup and assistance. Use when identifying ICD-10-CM diagnosis codes, CPT procedure codes, or CDT dental codes from clinical documentation. Triggers: coding, ICD, CPT, CDT, billing codes, code this encounter, what code, how to code. allowed-tools: Bash, Read, Grep

ICD-10 / CPT / CDT Coding Skill

How to Search for Codes

Use the bundled code_lookup.py script:

# Search ICD-10-CM codes by description
python .claude/skills/icd-cpt-coding/code_lookup.py --system icd10 --query "osteonecrosis jaw"

# Search CPT codes by description
python .claude/skills/icd-cpt-coding/code_lookup.py --system cpt --query "surgical extraction"

# Look up a specific code
python .claude/skills/icd-cpt-coding/code_lookup.py --system icd10 --code M87.180

# Filter by specialty
python .claude/skills/icd-cpt-coding/code_lookup.py --system icd10 --query "fracture" --specialty oral-surgery

Reference Files

• reference/icd10_common.json — Common ICD-10 codes by specialty
• reference/cpt_common.json — Common CPT/CDT codes by specialty
• reference/clinical_decision_rules.md — Decision rules for E/M complexity

Coding Rules to Follow

1. Highest specificity: Always use the most specific code supported by documentation
2. Laterality: Code right/left/bilateral when applicable
3. 7th character: Include for injury/fracture codes (A=initial, D=subsequent, S=sequela)
4. Medical necessity: Verify diagnosis supports the procedure code
5. Bundling: Check if procedure codes are bundled (CCI edits)
6. Modifiers: Apply -25, -59, -LT/-RT, etc. as appropriate
7. Never upcode: Only code what the documentation explicitly supports