09W90KZ

Potential MS-DRG Relationships (FY2026)

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 3 MS-DRGs:

• MDC 03 — Other Ear, Nose, Mouth and Throat O.R. Procedures: DRG 143, DRG 144, DRG 145

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Contextual Map

Every relationship of 09W90KZ in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

PCS table

• 09W[PCS table]
• [object Object] — Section: [object Object] [Section]: “[object Object]”
• [object Object] — Body System: [object Object] [Body System]: “[object Object]”
• [object Object] — Operation: [object Object] [Operation]: “[object Object]”

MS-DRG participation

• DRG 143 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”
• DRG 144 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”
• DRG 145 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”

MDC crossing · diagnoses (1444)

• MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat [MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
• A18.6 — Tuberculosis of (inner) (middle) ear [Same-MDC diagnosis]: “Tuberculosis of (inner) (middle) ear — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
• A36.0 — Pharyngeal diphtheria [Same-MDC diagnosis]: “Pharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
• A36.1 — Nasopharyngeal diphtheria [Same-MDC diagnosis]: “Nasopharyngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
• A36.2 — Laryngeal diphtheria [Same-MDC diagnosis]: “Laryngeal diphtheria — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
• A54.5 — Gonococcal pharyngitis [Same-MDC diagnosis]: “Gonococcal pharyngitis — grouped in MDC 03, the diagnosis side of this code's crossing.” · check together
• and 1439 more

Nearest codes

• 09W70KZ — Revision of Nonautologous Tissue Substitute in Right Tympanic Membrane, Open Approach [One axis away]
• 09W80KZ — Revision of Nonautologous Tissue Substitute in Left Tympanic Membrane, Open Approach [One axis away]
• 09W907Z — Revision of Autologous Tissue Substitute in Right Auditory Ossicle, Open Approach [One axis away]
• 09W90JZ — Revision of Synthetic Substitute in Right Auditory Ossicle, Open Approach [One axis away]
• 09W97KZ — Revision of Nonautologous Tissue Substitute in Right Auditory Ossicle, Via Natural or Artificial Opening [One axis away]
• 09W98KZ — Revision of Nonautologous Tissue Substitute in Right Auditory Ossicle, Via Natural or Artificial Opening Endoscopic [One axis away]
• 09WA0KZ — Revision of Nonautologous Tissue Substitute in Left Auditory Ossicle, Open Approach [One axis away]
• 09WH0KZ — Revision of Nonautologous Tissue Substitute in Right Ear, Open Approach [One axis away]