ICD-10 · PDGM grouping
N30 Cystitis
All 14 codes in the N30 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
14
Can lead a claim
14
Cannot lead a claim
0
What CMS assigns to N30
All 14 codes group to MMTA - Gastrointestinal tract and Genitourinary system (13) and MMTA - Other (1). None of the 14 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in N30
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| N30.0 Acute cystitis | ||||
| N30.00 | Acute cystitis without hematuria | Can lead a claim | J | None |
| N30.01 | Acute cystitis with hematuria | Can lead a claim | J | None |
| N30.1 Interstitial cystitis (chronic) | ||||
| N30.10 | Interstitial cystitis (chronic) without hematuria | Can lead a claim | J | None |
| N30.11 | Interstitial cystitis (chronic) with hematuria | Can lead a claim | J | None |
| N30.2 Other chronic cystitis | ||||
| N30.20 | Other chronic cystitis without hematuria | Can lead a claim | J | None |
| N30.21 | Other chronic cystitis with hematuria | Can lead a claim | J | None |
| N30.3 Trigonitis | ||||
| N30.30 | Trigonitis without hematuria | Can lead a claim | J | None |
| N30.31 | Trigonitis with hematuria | Can lead a claim | A | None |
| N30.4 Irradiation cystitis | ||||
| N30.40 | Irradiation cystitis without hematuria | Can lead a claim | J | None |
| N30.41 | Irradiation cystitis with hematuria | Can lead a claim | J | None |
| N30.8 Other cystitis | ||||
| N30.80 | Other cystitis without hematuria | Can lead a claim | J | None |
| N30.81 | Other cystitis with hematuria | Can lead a claim | J | None |
| N30.9 Cystitis, unspecified | ||||
| N30.90 | Cystitis, unspecified without hematuria | Can lead a claim | J | None |
| N30.91 | Cystitis, unspecified with hematuria | Can lead a claim | J | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. 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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