G0685: Algorithm-based assessment of likelihood of autism spectrum disorder (asd), derived from validated analysis of eye-gaze data or other technology
G0685 is a HCPCS Level II code for algorithm-based assessment of likelihood of autism spectrum disorder (asd), derived from validated analysis of eye-gaze data or other technology. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
The CMS record for G0685
- Long descriptor
- Algorithm-based assessment of likelihood of autism spectrum disorder (asd), derived from validated analysis of eye-gaze data or other technology
- Short descriptor
- Algorithm assessment for asd
- Added
- October 1, 2026
- BETOS
- T2D
- Pricing indicator
- 13: Physician fee schedule
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service: CMS's own analytic grouping.
Price established by carriers, not otherwise classified, individual determination, or carrier discretion.
Codes adjacent to G0685
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If G0685 is not quite right, the correct code is very often within a few positions of it.
- G0676Standard co-management service payment for documented review of clinical updates from access participant managing cardio-kidney-metabolic conditions (early cardio-kidney-metabolic [eckm] or cardio-kidney-metabolic [ckm] track); per review
- G0677Standard co-management service payment for documented review of clinical updates from access participant managing musculoskeletal (msk) conditions; per review
- G0678Standard co-management service payment for documented review of clinical updates from access participant managing behavioral health (bh) conditions (depression, anxiety); per review
- G0680Detection and quantification of coronary artery calcium and/or aortic valve calcification from algorithmic analysis of computed tomography of the chest with report
- G0681Application of a premarket approval (pma), 510(k), 361 human cells, tissues or cellular and tissue-based products (hct/p) non-sheet form skin substitute for a wound surface area up to 100 sq cm; first 25 sq cm or less of wound surface area
- G0682Application of a premarket approval (pma), 510(k), 361 human cells, tissues or cellular and tissue-based products (hct/p) non-sheet form skin substitute for a wound surface area up to 100 sq cm; each additional 25 sq cm wound surface area, or part thereof (list separately in addition to code for primary procedure)
- G0683Application of a premarket approval (pma), 510(k), 361 human cells, tissues or cellular and tissue-based products (hct/p) non-sheet form skin substitute graft for a wound surface greater than or equal to 100 sq cm; first 100 sq cm wound surface area, or 1% of body area of infants and children
- G0684Application of a premarket approval (pma), 510(k), 361 human cells, tissues or cellular and tissue-based products (hct/p) non-sheet form skin substitute graft for a wound surface greater than or equal to 100 sq cm; each additional 100 sq cm wound surface area or part thereof, or each additional 1% of body area of infants and children, or part thereof (list separately in addition to code for primary procedure)
- G0908Most recent hemoglobin (hgb) level > 12.0 g/dlterminated
- G0909Hemoglobin level measurement not documented, reason not giventerminated
- G0910Most recent hemoglobin level <= 12.0 g/dlterminated
- G0913Improvement in visual function achieved within 90 days following cataract surgery
- G0914Patient care survey was not completed by patient
- G0915Improvement in visual function not achieved within 90 days following cataract surgery
- G0916Satisfaction with care achieved within 90 days following cataract surgery
- G0917Patient care survey was not completed by patient