PDFWAC 182-535-1088
Dental-related services—Covered—Periodontic services.
Clients described in WAC 182-535-1060 are eligible to receive the dental-related periodontic services listed in this section, subject to coverage limitations, restrictions, and client-age requirements identified for a specified service.
(1) Surgical periodontal services. The medicaid agency covers the following surgical periodontal services, including all postoperative care:
(a) Gingivectomy/gingivoplasty (does not include distal wedge procedures on erupting molars) only on a case-by-case basis and when prior authorized and only for clients age 20 and younger; and
(b) Gingivectomy/gingivoplasty (does not include distal wedge procedures on erupting molars) for clients of the developmental disabilities administration of the department of social and health services (DSHS) according to WAC 182-535-1099.
(2) Nonsurgical periodontal services. The agency:
(a) Covers periodontal scaling and root planing for clients age 13 through 18, once per quadrant per client, in a two-year period on a case-by-case basis, when prior authorized, and only when:
(i) The client has radiographic evidence of periodontal disease;
(ii) The client's record includes supporting documentation for the medical necessity, including complete periodontal charting done within the past 12 months from the date of the prior authorization request and a definitive diagnosis of periodontal disease;
(iii) The client's clinical condition meets current published periodontal guidelines; and
(iv) Performed at least two years from the date of completion of periodontal scaling and root planing or surgical periodontal treatment, or at least 12 calendar months from the completion of periodontal maintenance.
(b) Covers periodontal scaling and root planing once per quadrant per client in a two-year period for clients age 19 and older. Criteria in (a)(i) through (iv) of this subsection must be met.
(c) Considers ultrasonic scaling, gross scaling, or gross debridement to be included in the procedure and not a substitution for periodontal scaling and root planing.
(d) Covers periodontal scaling and root planing only when the services are not performed on the same date of service as prophylaxis, periodontal maintenance, gingivectomy, or gingivoplasty.
(e) Covers periodontal scaling and root planing for clients of the developmental disabilities administration of DSHS according to WAC 182-535-1099.
(f) Covers periodontal scaling and root planing, one time per quadrant in a 12-month period for clients residing in an alternate living facility or nursing facility.
(3) Other periodontal services. The agency:
(a) Covers periodontal maintenance for clients age 13 through 18 once per client in a 12-month period on a case-by-case basis, when prior authorized, and only when:
(i) The client has radiographic evidence of periodontal disease;
(ii) The client's record includes supporting documentation for the medical necessity, including complete periodontal charting done within the past 12 months with location of the gingival margin and clinical attachment loss and a definitive diagnosis of periodontal disease;
(iii) The client's clinical condition meets current published periodontal guidelines; and
(iv) The client has had periodontal scaling and root planing but not within 12 months of the date of completion of periodontal scaling and root planing, or surgical periodontal treatment.
(b) Covers periodontal maintenance once per client in a 12-month period for clients age 19 and older. Criteria in (a)(i) through (iv) of this subsection must be met.
(c) Covers periodontal maintenance only if performed at least 12 calendar months after receiving prophylaxis, periodontal scaling and root planing, gingivectomy, or gingivoplasty.
(d) Covers periodontal maintenance for clients of the developmental disabilities administration of DSHS according to WAC 182-535-1099.
(e) Covers periodontal maintenance for clients residing in an alternate living facility or nursing facility:
(i) Periodontal maintenance (four quadrants) substitutes for an eligible periodontal scaling or root planing once every six months.
(ii) Periodontal maintenance allowed six months after scaling or root planing.
(f) Covers periodontal maintenance for clients 21 and older with a diagnosis of diabetes:
(i) Periodontal maintenance allowed once every three months. Criteria in (a)(i) through (iii) of this subsection must be met.
(ii) Periodontal maintenance allowed three months after scaling or root planing.
(g) Covers full-mouth scaling in the presence of generalized moderate or severe gingival inflammation and only:
(i) For clients age 19 and older once in a 12-month period after an oral evaluation; and
(ii) For clients age 13 through 18 once in a 12-month period after an oral evaluation and when prior authorized.
[Statutory Authority: RCW 41.05.021, 41.05.160, and 2023 c 475 § 211(60). WSR 23-20-129, § 182-535-1088, filed 10/4/23, effective 1/1/24. Statutory Authority: RCW 41.05.021 and 41.05.160. WSR 17-20-097, § 182-535-1088, filed 10/3/17, effective 11/3/17; WSR 16-18-033, § 182-535-1088, filed 8/26/16, effective 9/26/16. Statutory Authority: RCW 41.05.021 and 2013 2nd sp.s. c 4 § 213. WSR 14-08-032, § 182-535-1088, filed 3/25/14, effective 4/30/14. Statutory Authority: RCW 41.05.021. WSR 12-09-081, § 182-535-1088, filed 4/17/12, effective 5/18/12. WSR 11-14-075, recodified as § 182-535-1088, filed 6/30/11, effective 7/1/11. Statutory Authority: RCW 74.08.090, 74.09.500, 74.09.520. WSR 07-06-042, § 388-535-1088, filed 3/1/07, effective 4/1/07.]