Monday, March 6, 2023

Coding Anterior Abdominal Hernias

This month’s edition of “Spotlight on CPT” will cover information regarding the coding for anterior abdominal and parastomal hernia repairs.  This section of CPT underwent some major changes for 2023.  Let’s begin by identifying anterior abdominal hernias.  These are hernias that were previously classified as ventral. Incisional, epigastric, umbilical or spigelian.  
 
The change resulted in the deletion of two code ranges: 49560-49590 (open) and 49652-49657 (laparoscopic).  The code range for the recategorized anterior abdominal hernias is 49591 - 49518.  
 
Only one code from the 49591-49618 series may be assigned.  Total defect size will be one of the factors in determining code selection.  The total defect size is based on the measurement of one or more anterior abdominal hernias.  The measurement should be determined prior to opening the hernia as fascial retraction may occur leading to an inaccurate measurement.  This measurement should be the maximum craniocaudal or transverse distance between the outer margins of all the anterior abdominal hernias that are being repaired.  For example, a patient may be described as having “Swiss cheese” defects and if multiple hernias are repaired during the same encounter, measurement should begin at the superior aspect of the upper defect to the inferior aspect of the lowest defect.  The size distinctions begin as less than 3 cm, 3 cm-10 cm, and finally greater than 10 cm.
 
As noted, total defect size is one component of choosing the correct anterior abdominal hernia repair code.  The other two components are whether the hernia is initial or recurrent, and if the hernia is reducible or incarcerated/strangulated. Notice that it no longer matters which approach is used for the repair as these codes capture any approach used (open, laparoscopic, robotic).  Likewise, there is no separate code assignment for the use of mesh or any other prosthetic device if they are used in conjunction with the repair.  The new code series is inclusive of mesh or other prosthetic devices when performed.
 
49591                   Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, 
                             spigelian), any approach (ie, open, laparoscopic, robotic), initial, including 
                             implantation of mesh or other prosthesis when performed, total length of defect(s);  
                             less than 3 cm, reducible

49592                   less than 3 cm, incarcerated or strangulated

49593                   3 cm to 10 cm, reducible

49594                   3 cm to 10 cm, incarcerated or strangulated

49595                   greater than 10 cm, reducible

49596                   greater than 10 cm, incarcerated or strangulated

49613                   Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, 
                             umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), recurrent
                             including implantation of mesh or other prosthesis when performed, total length of 
                             defect(s); less than 3 cm, reducible

49614                   less than 3 cm, incarcerated or strangulated

49615                   3 cm to 10 cm, reducible

49616                   3 cm to 10 cm, incarcerated or strangulated

49617                   greater than 10 cm, reducible

49618                   greater than 10 cm, incarcerated or strangulated
 
If inguinal, femoral, lumbar, parastomal hernias or omphaloceles are repaired during the same operative episode as an anterior abdominal hernia, they may be separately coded.  Be sure to assign modifier 59 as appropriate.
 
You may be wondering since only one code may be assigned for the repair of anterior abdominal hernias what the correct reporting would be if both reducible and incarcerated/strangulated hernias are repaired at the same encounter.  In that type of scenario, assign a code for incarcerated/strangulated.  For example, if there is a 3 cm reducible incisional hernia, and a 5 cm incarcerated incisional hernia (both initial), and they are separated by 3 cm, then the correct code to be assigned would be 49596 (3+5+3=11 cm total defect size, initial, and incarcerated).
 
Parastomal hernias occur around colostomies or ileostomies when the intestines bulge outward around a stomal opening.  The new codes for repair of parastomal hernias are noted below.  Please be aware that these code are for both initial and recurrent parastomal hernias and include the use of mesh or other prothesis when performed.  The repair codes differ between parastomal hernias that are reducible and those that are incarcerated/strangulated.
 
49621                      Repair of parastomal hernia, any approach (ie, open, laparoscopic, robotic), initial 
                                or recurrent, including implantation of mesh or other prosthesis, when performed; 
                                reducible

49622                      incarcerated or strangulated
 
The final change to be aware of in this section is the new add-on code 49623.  This code is for the removal of total or near total non-infected mesh or other prosthesis at the time of initial or recurrent anterior abdominal hernia or parastomal hernia repair.  Again, any approach may be used (open, laparoscopic, or robotic).  Do not use this code when infected mesh is removed.  Instead assign 11008.
 
Now, light has been shed on coding anterior abdominal hernias.

 
Click HERE to take an assessment on this material.


 

About the Author 

Dianna Foley, RHIA, CCS, CHPS, CDIP, is OHIMA's Education Coordinator. Dianna has been an HIM professional for over 20 years. She progressed through the ranks of coder, department supervisor, and department director, to her current role as a coding consultant. 

She previously served as the program director for Medical Coding and HIT at Eastern Gateway Community College. Dianna earned her bachelor's degree from the University of Cincinnati and holds RHIA, CHPS, CDIP and CCS certifications. She is an AHIMA Approved ICD-10-CM/PCS Trainer and is a presenter on coding topics at the national, state, and regional levels. Dianna mentors new AHIMA members and also provides monthly educational lectures to coders and clinical documentation specialists.