ICD-10 N30.00
Billable / Specific CCAcute cystitis without hematuria
About ICD-10-CM N30.00
ICD-10-CM code N30.00 represents Acute cystitis without hematuria. This is a billable/specific code in the Genitourinary System chapter (block N30). The 2026 edition of ICD-10-CM N30.00 became effective on October 1, 2025.
Coding Tips for N30.00
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
N30.00 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inpatient DRG Impact, CC
1340:75 codes Acute cystitis without hematuria. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for N30.00
Local Coverage Determinations (LCDs) from CMS MACs that list N30.00 as a covered diagnosis.
Showing top 10 of 138 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing N30.00.
1 Cigna
4 Medicare
1 Aetna
CPT Codes Commonly Billed with N30.00
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 52000 Cystoscopy — hematuria, cystitis, bladder outlet obstruction, BPH Urology
- 81001 Urinalysis with microscopy — UTI, cystitis, dysuria, urinary frequency, abnormal urine, pyelonephritis, chronic pyelonephritis, fever, kidney stone Laboratory
- 87086 Urine culture — UTI, cystitis, pyelonephritis, abnormal urine, dysuria Laboratory
- 52000 Cystoscopy diagnostic — bladder neck obstruction, cystitis, hematuria, hydronephrosis, bladder cancer, BPH, urinary retention, urethral stricture, poor stream, bladder calculus Urology
- 76857 Pelvic ultrasound non-OB — BPH, urinary retention, hematuria, poor stream, hydronephrosis, bladder cancer, pelvic pain, cystitis Urology
Convert N30.00 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| N30.00 | 5950 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To N30.00
Other codes in section N30-N39 (Other diseases of the urinary system).
ICD-10 N30.00, Billing FAQ
Is ICD-10 code N30.00 billable? +
Yes, N30.00 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is N30.00 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with N30.00? +
Procedures frequently paired with N30.00 include: 52000, 81001, 87086, 52000, 76857.
What ICD-9 codes does N30.00 map to? +
Per CMS GEMs, N30.00 maps to ICD-9 codes: 5950. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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