G9999Procedures and Professional Services (Temporary)

Documentation of system reason(s) for an interval of less than 3 years since

Q: What is HCPCS code G9999?

G9999 is a HCPCS Level II code for Documentation of system reason(s) for an interval of less than 3 years since.

Q: What category is HCPCS code G9999 in?

G9999 falls under the Procedures and Professional Services (Temporary) category of HCPCS Level II.

Q: When did HCPCS code G9999 become effective?

G9999 has been effective since January 1, 2025, per CMS's quarterly HCPCS update.

Short description: Doc sys rsn <3 colon

Effective date: January 1, 2025
Termination date: —

Related codes (G-series)

G0008Admin influenza virus vac G0009Admin pneumococcal vaccine G0010Admin hepatitis b vaccine G0011Hiv prep counsel, md 15-30m G0012Injection of hiv prep drug G0013Hiv prep counsel, clin staff G0017Crisis psychotherapy 60m G0018Crisis psychotherapy add 30m G0019Comm hlth intg svs sdoh 60mn G0022Comm hlth intg svs add 30 m G0023Pin service 60m per month G0024Pin srv add 30 min pr m

Frequently asked questions

What is HCPCS code G9999?

G9999 is a HCPCS Level II code for Documentation of system reason(s) for an interval of less than 3 years since.

What category is HCPCS code G9999 in?

G9999 falls under the Procedures and Professional Services (Temporary) category of HCPCS Level II.

When did HCPCS code G9999 become effective?

G9999 has been effective since January 1, 2025, per CMS's quarterly HCPCS update.

HCPCS Level II data from CMS (public domain). HCPCS Level I (CPT) codes are not included — CPT is copyrighted by the American Medical Association. Always verify codes with authoritative sources before making coding or billing decisions.