ICD-10-CM Structural & Specificity Checker
ICD-10-CM structural and specificity check: category/subcategory grammar and whether a 7th character is required.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- ICD-10-CM code, e.g. M54.5
- M54.5
Result: M54.5 (low back pain) satisfies the ICD-10-CM structural grammar.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- ICD-10-CM code, e.g. M54.5
How this is calculated
ICD-10-CM Official Guidelines for Coding and Reporting and the code-set conventions (CMS/NCHS annual files): the category/etiology/site/laterality structure, the placeholder X, and the required 7th character for certain chapters. Structure & specificity only -- not clinical correctness. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.
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