G8843

HCPCS

Doc reas no ahi rdi rei

Official HCPCS Level II long descriptor

Documentation of reason(s) for not measuring an apnea hypopnea index (ahi), a respiratory disturbance index (rdi), or a respiratory event index (rei) within 2 months after initial evaluation for suspected obstructive sleep apnea (e.g., medical, neurological, or psychiatric disease that prohibits successful completion of a sleep study, patients for whom a sleep study would present a bigger risk than benefit or would pose an undue burden, dementia, patients previously diagnosed with osa and severity assessed by another provider, patients who decline ahi/rdi/rei measurement, patients who had a financial reason for not completing testing, test was ordered but not completed, patients decline because their insurance (payer) does not cover the expense)

HCPCS Level II code G8843 is maintained by CMS and is active in the current quarterly release.

Short descriptor

Doc reas no ahi rdi rei

Added to HCPCS: 2012-01-01

Nearby codes in G8

Where this code sits

HCPCS Level II G8 codes

Krasyn Codes for Chrome

Review coding suggestions beside a validated web workflow. Private pilot.

Request pilot access

Source

HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

Review coding suggestions beside your workflow. Krasyn Codes for Chrome is in a private pilot.Request pilot access →