ICD-10 · PDGM grouping
B00-B09 — Viral infections characterized by skin and mucous membrane lesions
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in range
82
No clinical group
1
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
66 of the 82 codes in B00-B09 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases, but the range is not uniform — it spreads across 3 clinical groups. A further 1 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in B00-B09
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
- B00Herpesviral [herpes simplex] infections15 codes
- B01Varicella [chickenpox]7 codes
- B02Zoster [herpes zoster]16 codes
- B03Smallpox1 code
- B04Monkeypox1 code
- B05Measles8 codes
- B06Rubella [German measles]8 codes
- B07Viral warts3 codes
- B08Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified22 codes
- B09Unspecified viral infection characterized by skin and mucous membrane lesions1 code
Every code in B00-B09
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| B000 | Eczema herpeticum | K | Can lead a claim |
| B001 | Herpesviral vesicular dermatitis | K | Can lead a claim |
| B002 | Herpesviral gingivostomatitis and pharyngotonsillitis | K | Can lead a claim |
| B003 | Herpesviral meningitis | B | Can lead a claim |
| B004 | Herpesviral encephalitis | B | Can lead a claim |
| B0050 | Herpesviral ocular disease, unspecified | K | Can lead a claim |
| B0051 | Herpesviral iridocyclitis | K | Can lead a claim |
| B0052 | Herpesviral keratitis | K | Can lead a claim |
| B0053 | Herpesviral conjunctivitis | K | Can lead a claim |
| B0059 | Other herpesviral disease of eye | K | Can lead a claim |
| B007 | Disseminated herpesviral disease | K | Can lead a claim |
| B0081 | Herpesviral hepatitis | K | Can lead a claim |
| B0082 | Herpes simplex myelitis | K | Can lead a claim |
| B0089 | Other herpesviral infection | K | Can lead a claim |
| B009 | Herpesviral infection, unspecified | K | Can lead a claim |
| B010 | Varicella meningitis | B | Can lead a claim |
| B0111 | Varicella encephalitis and encephalomyelitis | B | Can lead a claim |
| B0112 | Varicella myelitis | B | Can lead a claim |
| B012 | Varicella pneumonia | K | Can lead a claim |
| B0181 | Varicella keratitis | K | Can lead a claim |
| B0189 | Other varicella complications | K | Can lead a claim |
| B019 | Varicella without complication | K | Can lead a claim |
| B020 | Zoster encephalitis | B | Can lead a claim |
| B021 | Zoster meningitis | B | Can lead a claim |
| B0221 | Postherpetic geniculate ganglionitis | K | Can lead a claim |
| B0222 | Postherpetic trigeminal neuralgia | K | Can lead a claim |
| B0223 | Postherpetic polyneuropathy | K | Can lead a claim |
| B0224 | Postherpetic myelitis | K | Can lead a claim |
| B0229 | Other postherpetic nervous system involvement | B | Can lead a claim |
| B0230 | Zoster ocular disease, unspecified | K | Can lead a claim |
| B0231 | Zoster conjunctivitis | K | Can lead a claim |
| B0232 | Zoster iridocyclitis | K | Can lead a claim |
| B0233 | Zoster keratitis | K | Can lead a claim |
| B0234 | Zoster scleritis | K | Can lead a claim |
| B0239 | Other herpes zoster eye disease | K | Can lead a claim |
| B027 | Disseminated zoster | K | Can lead a claim |
| B028 | Zoster with other complications | K | Can lead a claim |
| B029 | Zoster without complications | K | Can lead a claim |
| B03 | Smallpox | None | Cannot lead a claim |
| B04 | Monkeypox | K | Can lead a claim |
| B050 | Measles complicated by encephalitis | B | Can lead a claim |
| B051 | Measles complicated by meningitis | B | Can lead a claim |
| B052 | Measles complicated by pneumonia | K | Can lead a claim |
| B053 | Measles complicated by otitis media | K | Can lead a claim |
| B054 | Measles with intestinal complications | K | Can lead a claim |
| B0581 | Measles keratitis and keratoconjunctivitis | K | Can lead a claim |
| B0589 | Other measles complications | K | Can lead a claim |
| B059 | Measles without complication | K | Can lead a claim |
| B0600 | Rubella with neurological complication, unspecified | B | Can lead a claim |
| B0601 | Rubella encephalitis | B | Can lead a claim |
| B0602 | Rubella meningitis | B | Can lead a claim |
| B0609 | Other neurological complications of rubella | B | Can lead a claim |
| B0681 | Rubella pneumonia | K | Can lead a claim |
| B0682 | Rubella arthritis | K | Can lead a claim |
| B0689 | Other rubella complications | K | Can lead a claim |
| B069 | Rubella without complication | E | Can lead a claim |
| B070 | Plantar wart | K | Can lead a claim |
| B078 | Other viral warts | K | Can lead a claim |
| B079 | Viral wart, unspecified | K | Can lead a claim |
| B08010 | Cowpox | K | Can lead a claim |
| B08011 | Vaccinia not from vaccine | K | Can lead a claim |
| B0802 | Orf virus disease | K | Can lead a claim |
| B0803 | Pseudocowpox [milker's node] | K | Can lead a claim |
| B0804 | Paravaccinia, unspecified | K | Can lead a claim |
| B0809 | Other orthopoxvirus infections | K | Can lead a claim |
| B081 | Molluscum contagiosum | K | Can lead a claim |
| B0820 | Exanthema subitum [sixth disease], unspecified | K | Can lead a claim |
| B0821 | Exanthema subitum [sixth disease] due to human herpesvirus 6 | K | Can lead a claim |
| B0822 | Exanthema subitum [sixth disease] due to human herpesvirus 7 | K | Can lead a claim |
| B083 | Erythema infectiosum [fifth disease] | K | Can lead a claim |
| B084 | Enteroviral vesicular stomatitis with exanthem | K | Can lead a claim |
| B085 | Enteroviral vesicular pharyngitis | K | Can lead a claim |
| B0860 | Parapoxvirus infection, unspecified | K | Can lead a claim |
| B0861 | Bovine stomatitis | K | Can lead a claim |
| B0862 | Sealpox | K | Can lead a claim |
| B0869 | Other parapoxvirus infections | K | Can lead a claim |
| B0870 | Yatapoxvirus infection, unspecified | K | Can lead a claim |
| B0871 | Tanapox virus disease | K | Can lead a claim |
| B0872 | Yaba pox virus disease | K | Can lead a claim |
| B0879 | Other yatapoxvirus infections | K | Can lead a claim |
| B088 | Oth viral infections with skin and mucous membrane lesions | K | Can lead a claim |
| B09 | Unsp viral infection with skin and mucous membrane lesions | K | Can lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. 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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