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ICD-10-CM O22.50, Cerebral venous thrombosis in pregnancy, unspecified trimester | No Prior Auth

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`O22.50`, Cerebral venous thrombosis in pregnancy, unspecified trimester

ICD-10-CM

Prior Authorization

No Prior Auth Required

Covered without prior authorization (high confidence)

Documentation Required

Medical records must include history and physical notes, laboratory results, and documentation of signs and symptoms that warrant the head/neck diagnostic imaging.
Accurate HCPCS/CPT coding must be submitted to differentiate CT and MRI scans from other radiology services and to support coverage determinations.
Documentation and supporting information must be available to Medicare upon request.
Providers should check and apply Correct Coding Initiative (CCI) edits and applicable LCD guidance for correct code combinations before billing.

Key Coverage Criteria

CT or MRI scans of the head or neck are covered when the medical record documents the scan is reasonable and necessary for diagnostic evaluation.
Coverage requires documentation supporting clinical indication such as history and physical exam findings, laboratory results, and signs or symptoms that justify the diagnostic test.
Determination of gestational age
Assessment of fetal number (e.g., multiple gestation)
Assessment of fetal viability
Determination of placental location

2 Active Policies

AMBETTER-CP.MP.38, Ultrasound in Pregnancy

A57204, Billing and Coding: MRI and CT Scans of the Head and Neck

Related Codes

Q04.8(2 policies)Q30.1(2 policies)70460(1 policies)70480(1 policies)70481(1 policies)70482(1 policies)70486(1 policies)70470(1 policies)

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Clear clinical indication and the specific diagnostic question for the ultrasound

Documentation of ultrasound findings relevant to the indication (e.g., gestational age, fetal number, viability, placental location)