Crystal's Coder Hub🩺 CPT 52317 — Litholapaxy: Crushing Or Fragmentation Of Calculus By Any Means In Bladder And Removal Of Fragments; Simple Or Small (Less Than 2.5 Cm)
Quick Reference
wRVU: 6.71 | Global Period: 000 (Zero Days) | Assistant Payable: 0 (Payment restriction; assistant surgeon not permitted/paid) | Bilateral Indicator: 0 (Not applicable; the bladder is a single midline organ)
📋 Clinical Description
CPT 52317 describes cystourethroscopy with litholapaxy in which the surgeon fragments a bladder calculus by any means and removes the fragments during the same session.1 The code is used when the stone is simple or small, meaning less than 2.5 cm.1 It is distinct from 52318, which is used for complicated or large stones over 2.5 cm, and published coding guidance also points coders to 52318 for multiple bladder stones of any size.1,2
Bladder calculus (N21.0) is the diagnosis most directly associated with this procedure when documentation identifies a bladder stone requiring endoscopic fragmentation and evacuation.1 The operative note should support bladder location, fragmentation/removal, and whether the case was simple/small rather than complicated/large, because that distinction drives selection between 52317 and 52318.1,2
This procedure may be performed in the following clinical contexts:
- Solitary small bladder stone — Endoscopic fragmentation and removal are performed when a single bladder calculus is documented as simple or small.1
- Stone not removable intact — The surgeon must crush or fragment the stone before removing the pieces through the cystoscope.1
- Simple cystolitholapaxy case — The documentation supports a straightforward bladder stone case rather than a complicated or large-stone service.1,2
- Symptomatic bladder stone — Typical documentation may include pain, hematuria, dysuria, or obstructive urinary symptoms prompting treatment.
- Outpatient urology intervention — The service is commonly performed in an office, outpatient hospital, or ASC setting when the clinical picture supports endoscopic management.
🔬 Anatomical & Procedural Considerations
| Approach / Technique Variant | Mechanism / Steps | Key Notes |
|---|---|---|
| Cystourethroscopic access | The cystoscope is passed through the urethra into the bladder to visualize the stone and treatment field.1 | Documentation should clearly show that the service was cystourethroscopic and performed in the bladder.1 |
| Fragmentation by any means | The stone is crushed or fragmented before extraction of the pieces.1 | The descriptor allows fragmentation “by any means,” so the method can vary as long as fragmentation plus fragment removal are documented.1 |
| Fragment removal | Stone fragments are evacuated/removed during the same session.1 | If documentation supports simple removal without litholapaxy, review whether a removal code such as 52310 or 52315 is actually the better fit.2 |
Clinical Pearl
For 52317, the operative note should make three things obvious: bladder location, litholapaxy/fragmentation, and a simple-or-small stone burden under 2.5 cm.1,2 If the stone is large, complicated, or there are multiple bladder stones, that is where coders should stop and reassess for 52318.2
✅ Procedure Includes
- Endoscopic cystourethroscopic visualization of the urethra and bladder.1
- Fragmentation/crushing of the bladder calculus by any means.1
- Removal of stone fragments during the same operative session.1
- Typical intra-procedural visualization and completion assessment inherent to the cystoscopic service.
- Routine procedural documentation of stone location, stone burden, and technique used.
❌ Excludes / Do Not Report Together
| Code | Description | Relationship to 52317 |
|---|---|---|
| 52310 | Cystourethroscopy, with removal of foreign body, calculus, or ureteral stent from urethra or bladder (separate procedure); simple | Use when the service is simple removal rather than litholapaxy/crushing with fragment removal.2 |
| 52315 | Cystourethroscopy, with removal of foreign body, calculus, or ureteral stent from urethra or bladder (separate procedure); complicated | Use when documentation supports complicated removal, but not the litholapaxy service described by 52317.2 |
| 52318 | Litholapaxy: crushing or fragmentation of calculus by any means in bladder and removal of fragments; complicated or large (over 2.5 cm) | Report either 52317 or 52318 based on stone size/complexity; coding guidance also points to 52318 for multiple bladder stones of any size.1,2 |
| E/M codes (992xx) | Office visit, any level | Separately reportable only when modifier -25 is appended to the E/M code and documentation supports a significant, separately identifiable E/M service beyond the usual pre-procedure work. |
Bundling Alert — Global Period is VERIFY IN CURRENT MPFS
Do not assume the global days from neighboring cystoscopy codes. Confirm the current CMS MPFS indicator before billing postoperative care, related return services, or global-period modifiers.
🌳 Code Tree — Surgery: Urinary System
CPT Urinary Endoscopy Family (focused local bladder stone/removal set)
├── 52310 Cystourethroscopy, with removal of foreign body, calculus, or ureteral stent from urethra or bladder (separate procedure); simple
├── 52315 Cystourethroscopy, with removal of foreign body, calculus, or ureteral stent from urethra or bladder (separate procedure); complicated
├── ▶▶ 52317 ◀◀ Litholapaxy: crushing or fragmentation of calculus by any means in bladder and removal of fragments; simple or small (less than 2.5 cm) ← YOU ARE HERE
└── 52318 Litholapaxy: crushing or fragmentation of calculus by any means in bladder and removal of fragments; complicated or large (over 2.5 cm)💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU (wRVU) | 6.71 |
| Global Period | 000 (Zero days) |
| Bilateral Indicator | 0 (Not applicable; the bladder is a single midline organ) |
| Assistant Surgeon | 0 (Payment restriction; assistant surgeon not permitted/paid) |
| Co-Surgeon | 0 (Co-surgeons not permitted) |
| Team Surgery | 0 (Team surgery not permitted) |
| PC/TC Split | N/A (0 - Surgical procedure; no professional/technical split) |
| Modifier -51 Exempt | No (Subject to standard multiple procedure reduction rules) |
| Anesthesia | Usually determined by site of service, patient factors, and surgeon/anesthesia documentation rather than by the CPT descriptor alone. |
Bilateral Billing Rules
Because this is a bladder procedure rather than a paired laterality-based organ service, do not assume modifier -50 usage from the descriptor alone. Verify the code-specific CMS bilateral indicator and payer rules before billing any bilateral format.
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -22 | Increased Procedural Services | Consider only when documentation shows unusual work beyond the typical simple/small stone service. |
| -25 | Significant, Separately Identifiable E/M | Applied to the E/M code, not 52317, when a separate medically necessary evaluation is documented on the same date. |
| -51 | Multiple Procedures | Use when payer rules require it and 52317 is performed with other surgical procedures in the same session. |
| -52 | Reduced Services | Use when the planned service is partially reduced; documentation must explain what was not completed. |
| -53 | Discontinued Procedure | Use when the procedure is stopped for patient safety or extenuating circumstances; document the reason clearly. |
| -59 | Distinct Procedural Service | Consider only when needed to show a distinct service under payer edit logic and supported by documentation. |
| -78 | Unplanned Return to OR | Use for a related return during the postoperative period when payer/global rules support it. |
| -79 | Unrelated Procedure During Postoperative Period | Use when an unrelated procedure is performed during the postoperative period of another service. |
🩺 Common ICD-10-CM Pairings
Bladder calculus / presenting symptoms
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| N21.0 | Calculus in bladder | ❌ No | Most direct diagnosis pairing when the operative note documents a bladder stone treated by cystoscopic litholapaxy. |
| R31.0 | Gross hematuria | ❌ No | Symptom code that may appear as an additional diagnosis when separately documented. |
| R30.0 | Dysuria | ❌ No | Additional symptom code when clearly documented and clinically relevant. |
Coding Specificity Reminder
For 52317, the biggest CPT specificity issue is not laterality; it is whether the stone burden and complexity support the simple/small descriptor versus the large/complicated descriptor of 52318.1,2 If the operative report does not clearly document stone size, number of stones, and whether fragmentation/removal occurred, query before final code assignment. ICD-10-CM specificity requirements are not optional.
🏥 MS-DRG Considerations (Inpatient)
Inpatient Coding Reminder
CPT 52317 is primarily an outpatient / ASC / endoscopic urology service. Routine MS-DRG assignment is generally not the focus for profee reporting of this CPT; if the patient is admitted for another reason, facility coding should separately validate any ICD-10-PCS assignment and DRG impact.
🔧 ICD-10-PCS Equivalents (Inpatient Facility Coding)
Note
Because this is mainly an outpatient urology CPT service, PCS crosswalk work is typically a facility-side question rather than a profee question. I would verify any PCS mapping directly in the facility encoder based on the actual fragmentation method, approach, and inpatient documentation.
| Component | Details |
|---|---|
| PCS Code | 0TCB8ZZ |
| Full Description | Extirpation of Matter from Bladder, Via Natural or Artificial Opening Endoscopic |
| Applicable Modality | Cystourethroscopy / Endoscopy |
| Actual documented inpatient technique | Transurethral cystoscopy with mechanical, ultrasonic, electrohydraulic, or laser lithotripsy and subsequent evacuation/removal of stone fragments. |
PCS Character Analysis — 0TCB8ZZ
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | T | Urinary System |
| 3 | Root Operation | C | Extirpation: Taking or cutting out solid matter from a body part. (The solid matter may be an abnormal byproduct of a biological function or a foreign body). |
| 4 | Body Part | B | Bladder |
| 5 | Approach | 8 | Via Natural or Artificial Opening Endoscopic: Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure. |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
PCS Root Operation Review
- Because the procedure inherently involves both the crushing of the stone and the removal of the fragments, the ICD-10-PCS root operation defaults to Extirpation rather than fragmentation
- For facility coding, the fragmentation method and documented approach can change the PCS logic.
📝 Coding Examples
Example 1 — Outpatient Hospital: Solitary Small Bladder Stone
Clinical Scenario: A 67-year-old male presents with gross hematuria and dysuria. Cystourethroscopy identifies a single 1.2 cm bladder stone. The urologist fragments the stone endoscopically and removes all visible fragments. No separately identifiable E/M service is documented.
| Field | Code | Rationale |
|---|---|---|
| CPT | 52317 | Endoscopic bladder stone fragmentation/removal; solitary simple or small stone under 2.5 cm. |
| PDx | N21.0 | Direct diagnosis of bladder calculus. |
| SDx | R31.0 | Gross hematuria, if separately documented and reportable. |
| SDx | R30.0 | Dysuria, if separately documented and reportable. |
Note
No modifier -25 is supported here because the usual evaluation associated with the procedure is bundled unless the note separately documents a significant E/M service.
Example 2 — ASC: Same-Day E/M With Small Bladder Stone
Clinical Scenario: A patient is evaluated for acute urinary symptoms and undergoes a full separate workup for retention and hematuria before the decision for cystoscopic stone treatment is made. The surgeon then performs cystourethroscopy with fragmentation and removal of one 1.8 cm bladder stone. The documentation clearly separates the E/M work from the procedure note.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 99214-25 | Significant, separately identifiable E/M service documented on the same date. |
| CPT 2 | 52317 | Simple/small bladder stone treated with litholapaxy and fragment removal. |
| PDx | N21.0 | Bladder calculus. |
| SDx | R31.0 | Symptom code, if separately supported. |
Warning
Example 3 — Documentation Query Scenario: Multiple Bladder Stones
Clinical Scenario: A procedure note states that the surgeon fragmented and removed “multiple bladder stones,” but the note does not clearly state total stone burden or whether the case should be considered complicated. The coder must decide whether 52317 is defensible or whether the documentation better supports 52318. A query is sent for clarification before final code assignment.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | HOLD / QUERY | Multiple stones raise concern that 52318 may be more appropriate. |
| PDx | N21.0 | Bladder calculus remains the primary diagnosis. |
Note
Global/documentation reminder: the note must support the actual stone burden and complexity. When “multiple stones” is documented, do not automatically default to 52317.
⚠️ Common Coding Pitfalls
-
Missing stone size documentation: If the operative note does not state that the stone was simple or small, coders lose the clearest support for 52317.1,2 Stone size matters because 52318 is the large/complicated counterpart, and multiple bladder stones also push the review toward 52318.2
-
Confusing litholapaxy with simple stone removal: 52310 and 52315 describe removal services, while 52317 requires crushing/fragmentation with removal of fragments.2 If the note does not support litholapaxy, review those removal codes before billing 52317.2
-
Under-coding multiple stones: Published coding guidance specifically warns that multiple bladder stones of any size may direct coding to 52318 rather than 52317.2 This is one of the easiest ways to miscode the bladder-stone family.
-
Billing -25 without a true separate E/M: Routine decision-making and pre-procedure assessment are not enough by themselves. The chart has to show a medically necessary, separately identifiable evaluation above and beyond the usual work.
-
Assuming MPFS indicators from memory: Global period, bilateral indicator, assistant-at-surgery status, and modifier-specific payment rules should be checked in the current MPFS before claim submission. Do not hard-code those values from an older year into your reference note.
📎 Sources
1 AAPC CPT® Code 52317 descriptor summary; code describes cystourethroscopy/litholapaxy with crushing or fragmentation of a bladder calculus and removal of fragments for a simple or small stone less than 2.5 cm.2 Urology Times coding guidance on bladder stone removal; distinguishes 52310/52315 from litholapaxy codes and states 52317 vs 52318 selection depends on size/complexity, with multiple bladder stones pointing to 52318.
3 Attached markdown template structure from your CPT note format.
4 CMS MPFS / status-indicator references were reviewed at a general level, but code-specific reimbursement fields were not directly confirmed in the accessible lookup output here, so those fields remain marked VERIFY. [2] CPT® Code 52317 - Surgical Procedures on the Bladder https://www.aapc.com/codes/cpt-codes/52317 [3] 52317 CPT4 https://genhealth.ai/code/cpt4/52317-litholapaxy-crushing-or-fragmentation-of-calculus-by-any-means-in-bladder-and-removal-of-fragments-simple-or-small-less-than-25-cm [4] Choosing Between 52317 and 52318 : You Be the Coder https://www.aapc.com/codes/coding-newsletters/my-urology-coding-alert/you-be-the-coder-choosing-between-52317-and-52318-154046-article [5] Physician Fee Schedule https://www.cms.gov/medicare/payment/fee-schedules/physician [6] Status Indicators https://www.cms.gov/status-indicators [7] How to Use the MPFS Look-Up Tool Booklet (MLN901344) https://www.cms.gov/sites/default/files/2021-04/How_to_MPFS_Booklet_ICN901344_0.pdf [8] How to bill for bladder stone removal performed during ... https://www.urologytimes.com/view/how-to-bill-for-bladder-stone-removal-performed-during-cystoscopy [9] CPT Code 52317 Billing and Documentation Guide in 2026 https://bellmedex.com/cpt-code-52317-billing-and-documentation-guide/ [10] Question 5 What is the correct CPT code for reporting ... https://www.coursehero.com/file/p3ospbl/Question-5-What-is-the-correct-CPT-code-for-reporting-cystoscopy-with/ [11] Global Surgery Data Collection https://www.cms.gov/medicare/payment/fee-schedules/physician/global-surgery-data-collection [12] Assistant at Surgery Modifiers Fact Sheet https://www.novitas-solutions.com/webcenter/portal/MedicareJL/pagebyid?contentId=00144529 [13] CMS Physician Fee Schedule https://www.academyofosteopathy.org/cms-physician-fee-schedule [14] How to code for removal of a bladder calculus via ... https://www.urologytimes.com/view/how-to-code-for-removal-of-a-bladder-calculus-via-a-mitrofanoff [15] Medicare Physician Fee Schedule https://www.acog.org/practice-management/coding/physician-payment/medicare-physician-fee-schedule [16] How do you code for laser treatment in the prostatic urethra? https://info.prsnetwork.com/how-do-you-code-for-laser-treatment-in-the-prostatic-urethra/