SIC Code 8399 — Social Services, Not Elsewhere Classified

4-digit industry in the 1987 Standard Industrial Classification — still requested by banks, insurers, SEC filings and legacy systems.

Code	8399
Title	Social Services, Not Elsewhere Classified
System	SIC 1987 (final edition — replaced by NAICS in 1997)

The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep requesting it. That is why converting between the two systems is still routine work.

NAICS equivalents of SIC 8399

From the official U.S. Census concordance (1987 SIC → 2002 NAICS). Where the 2002 code no longer exists in NAICS 2022, the closest current code is shown.

NAICS 2002	Title (2002)	Current 2022 code
813212	Voluntary Health Organizations	813212 (same code)
813219	Other Grantmaking and Giving Services	813219 (same code)
813311	Human Rights Organizations	813311 (same code)
813312	Environment, Conservation and Wildlife Organizations	813312 (same code)
813319	Other Social Advocacy Organizations	813319 (same code)

Other SIC codes in 83xx

• 8322 — Individual and Family Social Services
• 8331 — Job Training and Vocational Rehabilitation Services
• 8351 — Child Day Care Services
• 8361 — Residential Care

Data: 1987 SIC titles (OSHA/Census) and official Census concordance — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.