AHA Coding Clinic® for ICD-9 - 1991 Fourth Quarter; New/Revised Codes

Mechanical Ventilation - Specifying the Duration

New Codes October 1, 1991 ICD-9-CM will have new codes beginning October 1, 1991 which will identify the duration a patient is on continuous mechanical ventilation. The code for "other mechanical ventilation" is being deleted and three new codes are being created to specify ranges of time for other continuous mechanical ventilation. The old and new codes are as follows: Old code: deleted 93.92 Other mechanical ventilation New codes: Effective October 1, 1991 96.70 Continuous mechanical ventilation of unspecified duration Mechanical ventilation NOS 96.71 Continuous mechanical ventilation for less than 96 consecutive hours 96.72 Continuous...

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