846.9
ICD-9-CMThis code signifies a sprain or strain affecting the sacroiliac (SI) joint or surrounding ligaments, where the precise location within the sacroiliac region is not specified in the medical record. It indicates an injury to the connective tissues stabilizing the SI joint, often resulting in localized pain and dysfunction.
This code is appropriate when documentation clearly states a sprain of the sacroiliac region but lacks further specificity regarding the exact ligament or side (left/right). It is used when the provider's assessment identifies an SI sprain without detailing the specific anatomical site within that region.
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