M13.1 Header — not billable

Monoarthritis, not elsewhere classified

Monoarthritis, not elsewhere classified

M13.1 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.

Billable codes in this category

Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.

M13.10
Monoarthritis, not elsewhere classified, unspecified site

Single-joint arthritis that does not fit any more specific classification category, with the affected joint undocumented or unspecified.
↑ Parent: M13

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