ICD-10 · PDGM grouping
Y90-Y99 — Supplementary factors related to causes of morbidity classified elsewhere
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.
OASIS-E2 v1.00.0 · ingested 2026-04-26
Codes in range
334
No clinical group
334
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
None of the 334 codes in Y90-Y99 is assigned a PDGM clinical group. A 30-day period cannot be grouped from any of them, so none can hold the primary position on a home health claim.
Every code in Y90-Y99
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| Y900 | Blood alcohol level of less than 20 mg/100 ml | None | Cannot group |
| Y901 | Blood alcohol level of 20-39 mg/100 ml | None | Cannot group |
| Y902 | Blood alcohol level of 40-59 mg/100 ml | None | Cannot group |
| Y903 | Blood alcohol level of 60-79 mg/100 ml | None | Cannot group |
| Y904 | Blood alcohol level of 80-99 mg/100 ml | None | Cannot group |
| Y905 | Blood alcohol level of 100-119 mg/100 ml | None | Cannot group |
| Y906 | Blood alcohol level of 120-199 mg/100 ml | None | Cannot group |
| Y907 | Blood alcohol level of 200-239 mg/100 ml | None | Cannot group |
| Y908 | Blood alcohol level of 240 mg/100 ml or more | None | Cannot group |
| Y909 | Presence of alcohol in blood, level not specified | None | Cannot group |
| Y92000 | Kitchen of unsp non-institut (private) residence as place | None | Cannot group |
| Y92001 | Dining room of unsp non-institut residence as place | None | Cannot group |
| Y92002 | Bathroom of unsp non-institut (private) residence as place | None | Cannot group |
| Y92003 | Bedroom of unsp non-institut (private) residence as place | None | Cannot group |
| Y92007 | Garden or yard of unsp non-institut residence as place | None | Cannot group |
| Y92008 | Oth place in unsp non-institut (private) residence as place | None | Cannot group |
| Y92009 | Unsp place in unsp non-institut (private) residence as place | None | Cannot group |
| Y92010 | Kitchen of single-family (private) house as place | None | Cannot group |
| Y92011 | Dining room of single-family (private) house as place | None | Cannot group |
| Y92012 | Bathroom of single-family (private) house as place | None | Cannot group |
| Y92013 | Bedroom of single-family (private) house as place | None | Cannot group |
| Y92014 | Private driveway to single-family (private) house as place | None | Cannot group |
| Y92015 | Private garage of single-family (private) house as place | None | Cannot group |
| Y92016 | Swm-pool in sngl-fmly (private) house or garden as place | None | Cannot group |
| Y92017 | Garden or yard in single-family (private) house as place | None | Cannot group |
| Y92018 | Oth place in single-family (private) house as place | None | Cannot group |
| Y92019 | Unsp place in single-family (private) house as place | None | Cannot group |
| Y92020 | Kitchen in mobile home as place | None | Cannot group |
| Y92021 | Dining room in mobile home as place | None | Cannot group |
| Y92022 | Bathroom in mobile home as place | None | Cannot group |
| Y92023 | Bedroom in mobile home as place | None | Cannot group |
| Y92024 | Driveway of mobile home as place | None | Cannot group |
| Y92025 | Garage of mobile home as place | None | Cannot group |
| Y92026 | Swimming-pool of mobile home as place | None | Cannot group |
| Y92027 | Garden or yard of mobile home as place | None | Cannot group |
| Y92028 | Oth place in mobile home as place | None | Cannot group |
| Y92029 | Unsp place in mobile home as place | None | Cannot group |
| Y92030 | Kitchen in apartment as place | None | Cannot group |
| Y92031 | Bathroom in apartment as place | None | Cannot group |
| Y92032 | Bedroom in apartment as place | None | Cannot group |
| Y92038 | Oth place in apartment as place | None | Cannot group |
| Y92039 | Unsp place in apartment as place | None | Cannot group |
| Y92040 | Kitchen in boarding-house as place | None | Cannot group |
| Y92041 | Bathroom in boarding-house as place | None | Cannot group |
| Y92042 | Bedroom in boarding-house as place | None | Cannot group |
| Y92043 | Driveway of boarding-house as place | None | Cannot group |
| Y92044 | Garage of boarding-house as place | None | Cannot group |
| Y92045 | Swimming-pool of boarding-house as place | None | Cannot group |
| Y92046 | Garden or yard of boarding-house as place | None | Cannot group |
| Y92048 | Oth place in boarding-house as place | None | Cannot group |
| Y92049 | Unsp place in boarding-house as place | None | Cannot group |
| Y92090 | Kitchen in oth non-institutional residence as place | None | Cannot group |
| Y92091 | Bathroom in oth non-institutional residence as place | None | Cannot group |
| Y92092 | Bedroom in oth non-institutional residence as place | None | Cannot group |
| Y92093 | Driveway of non-institutional residence as place | None | Cannot group |
| Y92094 | Garage of non-institutional residence as place | None | Cannot group |
| Y92095 | Swimming-pool of non-institutional residence as place | None | Cannot group |
| Y92096 | Garden or yard of non-institutional residence as place | None | Cannot group |
| Y92098 | Oth place in oth non-institutional residence as place | None | Cannot group |
| Y92099 | Unsp place in oth non-institutional residence as place | None | Cannot group |
| Y9210 | Unsp residential institution as place | None | Cannot group |
| Y92110 | Kitchen in children's home and orphanage as place | None | Cannot group |
| Y92111 | Bathroom in children's home and orphanage as place | None | Cannot group |
| Y92112 | Bedroom in children's home and orphanage as place | None | Cannot group |
| Y92113 | Driveway of children's home and orphanage as place | None | Cannot group |
| Y92114 | Garage of children's home and orphanage as place | None | Cannot group |
| Y92115 | Swimming-pool of children's home and orphanage as place | None | Cannot group |
| Y92116 | Garden or yard of children's home and orphanage as place | None | Cannot group |
| Y92118 | Oth place in children's home and orphanage as place | None | Cannot group |
| Y92119 | Unsp place in children's home and orphanage as place | None | Cannot group |
| Y92120 | Kitchen in nursing home as place | None | Cannot group |
| Y92121 | Bathroom in nursing home as place | None | Cannot group |
| Y92122 | Bedroom in nursing home as place | None | Cannot group |
| Y92123 | Driveway of nursing home as place | None | Cannot group |
| Y92124 | Garage of nursing home as place | None | Cannot group |
| Y92125 | Swimming-pool of nursing home as place | None | Cannot group |
| Y92126 | Garden or yard of nursing home as place | None | Cannot group |
| Y92128 | Oth place in nursing home as place | None | Cannot group |
| Y92129 | Unsp place in nursing home as place | None | Cannot group |
| Y92130 | Kitchen on military base as place | None | Cannot group |
| Y92131 | Mess hall on military base as place | None | Cannot group |
| Y92133 | Barracks on military base as place | None | Cannot group |
| Y92135 | Garage on military base as place | None | Cannot group |
| Y92136 | Swimming-pool on military base as place | None | Cannot group |
| Y92137 | Garden or yard on military base as place | None | Cannot group |
| Y92138 | Oth place on military base as place | None | Cannot group |
| Y92139 | Unsp place military base as place | None | Cannot group |
| Y92140 | Kitchen in prison as place | None | Cannot group |
| Y92141 | Dining room in prison as place | None | Cannot group |
| Y92142 | Bathroom in prison as place | None | Cannot group |
| Y92143 | Cell of prison as place | None | Cannot group |
| Y92146 | Swimming-pool of prison as place | None | Cannot group |
| Y92147 | Courtyard of prison as place | None | Cannot group |
| Y92148 | Oth place in prison as place | None | Cannot group |
| Y92149 | Unsp place in prison as place | None | Cannot group |
| Y92150 | Kitchen in reform school as place | None | Cannot group |
| Y92151 | Dining room in reform school as place | None | Cannot group |
| Y92152 | Bathroom in reform school as place | None | Cannot group |
| Y92153 | Bedroom in reform school as place | None | Cannot group |
| Y92154 | Driveway of reform school as place | None | Cannot group |
| Y92155 | Garage of reform school as place | None | Cannot group |
| Y92156 | Swimming-pool of reform school as place | None | Cannot group |
| Y92157 | Garden or yard of reform school as place | None | Cannot group |
| Y92158 | Oth place in reform school as place | None | Cannot group |
| Y92159 | Unsp place in reform school as place | None | Cannot group |
| Y92160 | Kitchen in school dormitory as place | None | Cannot group |
| Y92161 | Dining room in school dormitory as place | None | Cannot group |
| Y92162 | Bathroom in school dormitory as place | None | Cannot group |
| Y92163 | Bedroom in school dormitory as place | None | Cannot group |
| Y92168 | Oth place in school dormitory as place | None | Cannot group |
| Y92169 | Unsp place in school dormitory as place | None | Cannot group |
| Y92190 | Kitchen in oth residential institution as place | None | Cannot group |
| Y92191 | Dining room in oth residential institution as place | None | Cannot group |
| Y92192 | Bathroom in oth residential institution as place | None | Cannot group |
| Y92193 | Bedroom in oth residential institution as place | None | Cannot group |
| Y92194 | Driveway of residential institution as place | None | Cannot group |
| Y92195 | Garage of residential institution as place | None | Cannot group |
| Y92196 | Pool of residential institution as place | None | Cannot group |
| Y92197 | Garden or yard of residential institution as place | None | Cannot group |
| Y92198 | Oth place in oth residential institution as place | None | Cannot group |
| Y92199 | Unsp place in oth residential institution as place | None | Cannot group |
| Y92210 | Daycare center as place | None | Cannot group |
| Y92211 | Elementary school as place | None | Cannot group |
| Y92212 | Middle school as place | None | Cannot group |
| Y92213 | High school as the place of occurrence of the external cause | None | Cannot group |
| Y92214 | College as the place of occurrence of the external cause | None | Cannot group |
| Y92215 | Trade school as place | None | Cannot group |
| Y92218 | Oth school as the place of occurrence of the external cause | None | Cannot group |
| Y92219 | Unsp school as the place of occurrence of the external cause | None | Cannot group |
| Y9222 | Religious institution as place | None | Cannot group |
| Y92230 | Patient room in hospital as place | None | Cannot group |
| Y92231 | Patient bathroom in hospital as place | None | Cannot group |
| Y92232 | Corridor of hospital as place | None | Cannot group |
| Y92233 | Cafeteria of hospital as place | None | Cannot group |
| Y92234 | Operating room of hospital as place | None | Cannot group |
| Y92238 | Oth place in hospital as place | None | Cannot group |
| Y92239 | Unsp place in hospital as place | None | Cannot group |
| Y92240 | Courthouse as the place of occurrence of the external cause | None | Cannot group |
| Y92241 | Library as the place of occurrence of the external cause | None | Cannot group |
| Y92242 | Post office as the place of occurrence of the external cause | None | Cannot group |
| Y92243 | City hall as the place of occurrence of the external cause | None | Cannot group |
| Y92248 | Oth public administrative building as place | None | Cannot group |
| Y92250 | Art Gallery as the place of occurrence of the external cause | None | Cannot group |
| Y92251 | Museum as the place of occurrence of the external cause | None | Cannot group |
| Y92252 | Music hall as the place of occurrence of the external cause | None | Cannot group |
| Y92253 | Opera house as the place of occurrence of the external cause | None | Cannot group |
| Y92254 | Theater (live) as place | None | Cannot group |
| Y92258 | Oth cultural public building as place | None | Cannot group |
| Y9226 | Movie house or cinema as place | None | Cannot group |
| Y9229 | Oth public building as place | None | Cannot group |
| Y92310 | Basketball court as place | None | Cannot group |
| Y92311 | Squash court as place | None | Cannot group |
| Y92312 | Tennis court as place | None | Cannot group |
| Y92318 | Oth athletic court as place | None | Cannot group |
| Y92320 | Baseball field as place | None | Cannot group |
| Y92321 | Football field as place | None | Cannot group |
| Y92322 | Soccer field as place | None | Cannot group |
| Y92328 | Oth athletic field as place | None | Cannot group |
| Y92330 | Ice skating rink (indoor) (outdoor) as place | None | Cannot group |
| Y92331 | Roller skating rink as place | None | Cannot group |
| Y9234 | Swimming pool (public) as place | None | Cannot group |
| Y9239 | Oth sports and athletic area as place | None | Cannot group |
| Y92410 | Unsp street and highway as place | None | Cannot group |
| Y92411 | Interstate highway as place | None | Cannot group |
| Y92412 | Parkway as the place of occurrence of the external cause | None | Cannot group |
| Y92413 | State road as the place of occurrence of the external cause | None | Cannot group |
| Y92414 | Local residential or business street as place | None | Cannot group |
| Y92415 | Exit ramp or entrance ramp of street or highway as place | None | Cannot group |
| Y92480 | Sidewalk as the place of occurrence of the external cause | None | Cannot group |
| Y92481 | Parking lot as the place of occurrence of the external cause | None | Cannot group |
| Y92482 | Bike path as the place of occurrence of the external cause | None | Cannot group |
| Y92488 | Oth paved roadways as place | None | Cannot group |
| Y92510 | Bank as the place of occurrence of the external cause | None | Cannot group |
| Y92511 | Restaurant or cafe as place | None | Cannot group |
| Y92512 | Supermarket, store or market as place | None | Cannot group |
| Y92513 | Shop (commercial) as place | None | Cannot group |
| Y92520 | Airport as the place of occurrence of the external cause | None | Cannot group |
| Y92521 | Bus station as the place of occurrence of the external cause | None | Cannot group |
| Y92522 | Railway station as place | None | Cannot group |
| Y92523 | Highway rest stop as place | None | Cannot group |
| Y92524 | Gas station as the place of occurrence of the external cause | None | Cannot group |
| Y92530 | Ambulatory surgery center as place | None | Cannot group |
| Y92531 | Health care provider office as place | None | Cannot group |
| Y92532 | Urgent care center as place | None | Cannot group |
| Y92538 | Oth ambulatory health services establishments as place | None | Cannot group |
| Y9259 | Oth trade areas as place | None | Cannot group |
| Y9261 | Building under construction as place | None | Cannot group |
| Y9262 | Dock or shipyard as place | None | Cannot group |
| Y9263 | Factory as the place of occurrence of the external cause | None | Cannot group |
| Y9264 | Mine or pit as the place of occurrence of the external cause | None | Cannot group |
| Y9265 | Oil rig as the place of occurrence of the external cause | None | Cannot group |
| Y9269 | Oth industrial and construction area as place | None | Cannot group |
| Y9271 | Barn as the place of occurrence of the external cause | None | Cannot group |
| Y9272 | Chicken coop as place | None | Cannot group |
| Y9273 | Farm field as the place of occurrence of the external cause | None | Cannot group |
| Y9274 | Orchard as the place of occurrence of the external cause | None | Cannot group |
| Y9279 | Oth farm location as place | None | Cannot group |
| Y92810 | Car as the place of occurrence of the external cause | None | Cannot group |
| Y92811 | Bus as the place of occurrence of the external cause | None | Cannot group |
| Y92812 | Truck as the place of occurrence of the external cause | None | Cannot group |
| Y92813 | Airplane as the place of occurrence of the external cause | None | Cannot group |
| Y92814 | Boat as the place of occurrence of the external cause | None | Cannot group |
| Y92815 | Train as the place of occurrence of the external cause | None | Cannot group |
| Y92816 | Subway car as the place of occurrence of the external cause | None | Cannot group |
| Y92818 | Oth transport vehicle as place | None | Cannot group |
| Y92820 | Desert as the place of occurrence of the external cause | None | Cannot group |
| Y92821 | Forest as the place of occurrence of the external cause | None | Cannot group |
| Y92828 | Oth wilderness area as place | None | Cannot group |
| Y92830 | Public park as the place of occurrence of the external cause | None | Cannot group |
| Y92831 | Amusement park as place | None | Cannot group |
| Y92832 | Beach as the place of occurrence of the external cause | None | Cannot group |
| Y92833 | Campsite as the place of occurrence of the external cause | None | Cannot group |
| Y92834 | Zoological garden (Zoo) as place | None | Cannot group |
| Y92838 | Oth recreation area as place | None | Cannot group |
| Y9284 | Military training ground as place | None | Cannot group |
| Y9285 | Railroad track as place | None | Cannot group |
| Y9286 | Slaughter house as place | None | Cannot group |
| Y9289 | Oth places as the place of occurrence of the external cause | None | Cannot group |
| Y929 | Unspecified place or not applicable | None | Cannot group |
| Y9301 | Activity, walking, marching and hiking | None | Cannot group |
| Y9302 | Activity, running | None | Cannot group |
| Y9311 | Activity, swimming | None | Cannot group |
| Y9312 | Activity, springboard and platform diving | None | Cannot group |
| Y9313 | Activity, water polo | None | Cannot group |
| Y9314 | Activity, water aerobics and water exercise | None | Cannot group |
| Y9315 | Activity, underwater diving and snorkeling | None | Cannot group |
| Y9316 | Activity, rowing, canoeing, kayaking, rafting and tubing | None | Cannot group |
| Y9317 | Activity, water skiing and wake boarding | None | Cannot group |
| Y9318 | Activity, surfing, windsurfing and boogie boarding | None | Cannot group |
| Y9319 | Activity, other involving water and watercraft | None | Cannot group |
| Y9321 | Activity, ice skating | None | Cannot group |
| Y9322 | Activity, ice hockey | None | Cannot group |
| Y9323 | Actvty,snow (alp/dwnhl) ski,snowboard,sled,tobogn & tubing | None | Cannot group |
| Y9324 | Activity, cross country skiing | None | Cannot group |
| Y9329 | Activity, other involving ice and snow | None | Cannot group |
| Y9331 | Activity, mountain climbing, rock climbing and wall climbing | None | Cannot group |
| Y9332 | Activity, rappelling | None | Cannot group |
| Y9333 | Activity, BASE jumping | None | Cannot group |
| Y9334 | Activity, bungee jumping | None | Cannot group |
| Y9335 | Activity, hang gliding | None | Cannot group |
| Y9339 | Activity, oth involving climbing, rappelling and jumping off | None | Cannot group |
| Y9341 | Activity, dancing | None | Cannot group |
| Y9342 | Activity, yoga | None | Cannot group |
| Y9343 | Activity, gymnastics | None | Cannot group |
| Y9344 | Activity, trampolining | None | Cannot group |
| Y9345 | Activity, cheerleading | None | Cannot group |
| Y9349 | Activity, oth involving dancing and other rhythmic movements | None | Cannot group |
| Y9351 | Activity, roller skating (inline) and skateboarding | None | Cannot group |
| Y9352 | Activity, horseback riding | None | Cannot group |
| Y9353 | Activity, golf | None | Cannot group |
| Y9354 | Activity, bowling | None | Cannot group |
| Y9355 | Activity, bike riding | None | Cannot group |
| Y9356 | Activity, jumping rope | None | Cannot group |
| Y9357 | Activity, non-running track and field events | None | Cannot group |
| Y9359 | Activity, oth w oth sports and athletics played individ | None | Cannot group |
| Y9361 | Activity, american tackle football | None | Cannot group |
| Y9362 | Activity, american flag or touch football | None | Cannot group |
| Y9363 | Activity, rugby | None | Cannot group |
| Y9364 | Activity, baseball | None | Cannot group |
| Y9365 | Activity, lacrosse and field hockey | None | Cannot group |
| Y9366 | Activity, soccer | None | Cannot group |
| Y9367 | Activity, basketball | None | Cannot group |
| Y9368 | Activity, volleyball (beach) (court) | None | Cannot group |
| Y9369 | Actvty, oth w oth sports & athletics played as a team or grp | None | Cannot group |
| Y936A | Actvty,physcl games assoc w school recess, sumr camp & child | None | Cannot group |
| Y9371 | Activity, boxing | None | Cannot group |
| Y9372 | Activity, wrestling | None | Cannot group |
| Y9373 | Activity, racquet and hand sports | None | Cannot group |
| Y9374 | Activity, frisbee | None | Cannot group |
| Y9375 | Activity, martial arts | None | Cannot group |
| Y9379 | Activity, other specified sports and athletics | None | Cannot group |
| Y9381 | Activity, refereeing a sports activity | None | Cannot group |
| Y9382 | Activity, spectator at an event | None | Cannot group |
| Y9383 | Activity, rough housing and horseplay | None | Cannot group |
| Y9384 | Activity, sleeping | None | Cannot group |
| Y9385 | Activity, choking game | None | Cannot group |
| Y9389 | Activity, other specified | None | Cannot group |
| Y939 | Activity, unspecified | None | Cannot group |
| Y93A1 | Activity, exercise machines prim for cardioresp conditioning | None | Cannot group |
| Y93A2 | Activity, calisthenics | None | Cannot group |
| Y93A3 | Activity, aerobic and step exercise | None | Cannot group |
| Y93A4 | Activity, circuit training | None | Cannot group |
| Y93A5 | Activity, obstacle course | None | Cannot group |
| Y93A6 | Activity, grass drills | None | Cannot group |
| Y93A9 | Activity, other involving cardiorespiratory exercise | None | Cannot group |
| Y93B1 | Activity, exercise machines prim for muscle strengthening | None | Cannot group |
| Y93B2 | Activity, push-ups, pull-ups, sit-ups | None | Cannot group |
| Y93B3 | Activity, free weights | None | Cannot group |
| Y93B4 | Activity, pilates | None | Cannot group |
| Y93B9 | Activity, other involving muscle strengthening exercises | None | Cannot group |
| Y93C1 | Activity, computer keyboarding | None | Cannot group |
| Y93C2 | Activity, hand held interactive electronic device | None | Cannot group |
| Y93C9 | Activity, oth involving computer tech and electrnc devices | None | Cannot group |
| Y93D1 | Activity, knitting and crocheting | None | Cannot group |
| Y93D2 | Activity, sewing | None | Cannot group |
| Y93D3 | Activity, furniture building and finishing | None | Cannot group |
| Y93D9 | Activity, other involving arts and handcrafts | None | Cannot group |
| Y93E1 | Activity, personal bathing and showering | None | Cannot group |
| Y93E2 | Activity, laundry | None | Cannot group |
| Y93E3 | Activity, vacuuming | None | Cannot group |
| Y93E4 | Activity, ironing | None | Cannot group |
| Y93E5 | Activity, floor mopping and cleaning | None | Cannot group |
| Y93E6 | Activity, residential relocation | None | Cannot group |
| Y93E8 | Activity, other personal hygiene | None | Cannot group |
| Y93E9 | Activity, other interior property and clothing maintenance | None | Cannot group |
| Y93F1 | Activity, caregiving, bathing | None | Cannot group |
| Y93F2 | Activity, caregiving, lifting | None | Cannot group |
| Y93F9 | Activity, other caregiving | None | Cannot group |
| Y93G1 | Activity, food preparation and clean up | None | Cannot group |
| Y93G2 | Activity, grilling and smoking food | None | Cannot group |
| Y93G3 | Activity, cooking and baking | None | Cannot group |
| Y93G9 | Activity, other involving cooking and grilling | None | Cannot group |
| Y93H1 | Activity, digging, shoveling and raking | None | Cannot group |
| Y93H2 | Activity, gardening and landscaping | None | Cannot group |
| Y93H3 | Activity, building and construction | None | Cannot group |
| Y93H9 | Actvty,oth w exter property & land maint, bldg and construct | None | Cannot group |
| Y93I1 | Activity, roller coaster riding | None | Cannot group |
| Y93I9 | Activity, other involving external motion | None | Cannot group |
| Y93J1 | Activity, piano playing | None | Cannot group |
| Y93J2 | Activity, drum and other percussion instrument playing | None | Cannot group |
| Y93J3 | Activity, string instrument playing | None | Cannot group |
| Y93J4 | Activity, winds and brass instrument playing | None | Cannot group |
| Y93K1 | Activity, walking an animal | None | Cannot group |
| Y93K2 | Activity, milking an animal | None | Cannot group |
| Y93K3 | Activity, grooming and shearing an animal | None | Cannot group |
| Y93K9 | Activity, other involving animal care | None | Cannot group |
| Y93L1 | Activity, splitting wood | None | Cannot group |
| Y93L9 | Activity, other outdoor activity | None | Cannot group |
| Y95 | Nosocomial condition | None | Cannot group |
| Y990 | Civilian activity done for income or pay | None | Cannot group |
| Y991 | Military activity | None | Cannot group |
| Y992 | Volunteer activity | None | Cannot group |
| Y998 | Other external cause status | None | Cannot group |
| Y999 | Unspecified external cause status | None | Cannot group |
Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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