HCPCS Code G9999

Documentation of system reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., unable to locate previous colonoscopy report, patient cannot provide precise date or details from previous colonoscopy, previous colonoscopy report was incomplete)
Code effective Jan 01, 2025

HCPCS Section
Procedures/Professional Services (Temporary Codes)

G9999 is a valid 2026 HCPCS code meaning Documentation of system reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., unable to locate previous colonoscopy report, patient cannot provide precise date or details from previous colonoscopy, previous colonoscopy report was incomplete) or (Doc sys rsn <3 colon) for short. HCPCS G9999 has been effective since 01/01/2025 and applies to Medical care.

HCPCS Code Details - G9999
HCPCS Level II Code Section G - Procedures/Professional Services (Temporary Codes)
HCPCS Code	`G9999`
Description	Long description: Documentation of system reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., unable to locate previous colonoscopy report, patient cannot provide precise date or details from previous colonoscopy, previous colonoscopy report was incomplete) Short description: Doc sys rsn <3 colon
HCPCS Pricing indicator	`00` - Physician Fee Schedule And Non-Physician Practitioners - Service not separately priced by part B (e.g., services not covered, bundled, used by Part A only, etc.)
Multiple pricing indicator	`9` - Not applicable as HCPCS not priced separately by part B or value is not established
Coverage code	`C` - Carrier judgment
BETOS² code	`Z2` - Undefined codes
HCPCS Action code	`N` - No maintenance for this code
Type of service	`1` - Medical care
Effective date	Effective Jan 01, 2025
Date added	Added Jan 01, 2022

HCPCS G9998 · Documentation of medical reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., last colonoscopy incomplete, last colonoscopy had inadequate prep, piecemeal removal of adenomas, or sessile serrated polyps >= 20 mm in size, last colonoscopy found greater than 10 adenomas, lower gastrointestinal bleeding, or patient at high risk for colon cancer due to underlying medical history ([i.e. crohn's disease, ulcerative colitis, personal or family history of colon cancer, hereditary colorectal cancer syndromes])
HCPCS G2095 · Documentation of system reason(s) for not prescribing ace inhibitor or arb or arni therapy (e.g., other system reasons)
HCPCS G9192 · Documentation of system reason(s) for not prescribing beta-blocker therapy (eg, other reasons attributable to the health care system)
HCPCS G9698 · Documentation of system reason(s) for not prescribing a long-acting inhaled bronchodilator (e.g., cost of treatment or lack of insurance)
HCPCS G9927 · Documentation of system reason(s) for not prescribing an fda-approved anticoagulation due to patient being currently enrolled in a clinical trial related to af/atrial flutter treatment
HCPCS M1217 · Documentation of system reason(s) for not documenting and reviewing spirometry results (e.g., spirometry equipment not available at the time of the encounter)

¹ Two-digit numeric codes are Level I code modifiers copyrighted© by the American Medical Association's Current Procedural Terminology (CPT).

² BETOS stands for “Berenson-Eggers Type Of Service”

HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/23/2026

HCPCS Code G9999

HCPCS Code Details - G9999

See also

HCPCS G2095 · Documentation of system reason(s) for not prescribing ace inhibitor or arb or arni therapy (e.g., other system reasons)

HCPCS G9192 · Documentation of system reason(s) for not prescribing beta-blocker therapy (eg, other reasons attributable to the health care system)

HCPCS G9698 · Documentation of system reason(s) for not prescribing a long-acting inhaled bronchodilator (e.g., cost of treatment or lack of insurance)

HCPCS G9927 · Documentation of system reason(s) for not prescribing an fda-approved anticoagulation due to patient being currently enrolled in a clinical trial related to af/atrial flutter treatment

HCPCS M1217 · Documentation of system reason(s) for not documenting and reviewing spirometry results (e.g., spirometry equipment not available at the time of the encounter)