C · Wound
One of the twelve PDGM clinical groups. CMS maps 4102 ICD-10-CM codes to it in grouper v07.2.26.
Group C
ICD-10-CM codes
4,102
Across 29 ICD-10-CM ranges, in grouper v07.2.26.
Functional bands
≤33 · 34–52 · 53+
OASIS points for low, medium and high functional impairment in this group.
LUPA thresholds
3 to 5 visits
Across the group’s 36 case-mix codes. Fewer visits than the threshold pays per visit.
Every HIPPS code in group C, with its LUPA threshold
1 · Community, Early
2 · Institutional, Early
3 · Community, Late
ICD-10-CM ranges that feed this group
- S30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals712
- S60-S69Injuries to the wrist, hand and fingers635
- T20-T25Burns and corrosions482
- L80-L99Other disorders of the skin and subcutaneous tissue335
- S20-S29Injuries to the thorax318
- S00-S09Injuries to the head294
- S90-S99Injuries to the ankle and foot228
- S50-S59Injuries to the elbow and forearm187
- S10-S19Injuries to the neck171
- S40-S49Injuries to the shoulder and upper arm162
- L00-L08Infections of the skin and subcutaneous tissue131
- I70-I79Diseases of arteries, arterioles and capillaries119
- S70-S79Injuries to the hip and thigh102
- S80-S89Injuries to the knee and lower leg90
- T80-T88Complications of surgical and medical care, not elsewhere classified55
- I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified38
- E08-E13Diabetes mellitus15
- O85-O92Complications predominantly related to the puerperium10
- A30-A49Other bacterial diseases2
- I95-I99Other and unspecified disorders of the circulatory system2
- J30-J39Other diseases of upper respiratory tract2
- L55-L59Radiation-related disorders of the skin and subcutaneous tissue2
- N40-N53Diseases of male genital organs2
- N60-N65Disorders of breast2
- Z40-Z53Encounters for other specific health care2
- A20-A28Certain zoonotic bacterial diseases1
- B85-B89Pediculosis, acariasis and other infestations1
- N99-N99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified1
- Q80-Q89Other congenital malformations1
What lands a period in this group
The clinical group is set by the principal diagnosis on the claim, and it is one of the five things that decide a 30-day period’s case-mix group, alongside admission source, timing, functional impairment level and comorbidity adjustment. CMS maps 4102 ICD-10-CM codes to Wound, spread across 29 ICD-10-CM ranges.
Those ranges are not always the ones you would expect from the chapter. Cerebrovascular disease sits in the circulatory chapter alongside heart failure, but CMS groups strokes as neurological rehabilitation, which is why the chapter a code lives in is a poor guide to how it pays.
The other eleven groups
- AMMTA - Other
- BNeuro Rehabilitation
- DComplex Nursing Interventions
- EMusculoskeletal Rehabilitation
- FBehavioral Health
- GMMTA - Surgical Aftercare
- HMMTA - Cardiac and Circulatory
- IMMTA - Endocrine
- JMMTA - Gastrointestinal tract and Genitourinary system
- KMMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases
- LMMTA - Respiratory
Source: CMS HH PPS Grouper Software v07.2.26 for the codes and bands, read from the CMS table, not transcribed; CMS’s CY2026 case-mix weights and LUPA thresholds file for the thresholds. Not certified, endorsed or approved by CMS.
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