About the Code Lookup

This site is dedicated exclusively to helping you look up ICD-10 codes, quickly access the codes you use most, and become more comfortable with the new code set in general. No ads, no spam, and it's free for everybody.

Our hope is that we can ease your search for ICD-10 codes just a little, and maybe even make it fun.

Also, for good measure you should read this (legal disclaimer).

And here's our privacy policy.

Have feedback?

We'd love to hear it!

{{a.name}} - {{a.desc}} Tab/click for more specific Billable
Sorry, we weren't able to find any results that match your search. Try changing a word or two, or being a little more specific. Thanks!
ICD-10 N21 - Calculus of lower urinary tract
Chapter 14 Section N20-N23

N21

ICD-10 Not billable

Calculus of lower urinary tract

Specifically for this code:
  • calculus of lower urinary tract with cystitis and urethritis
From Chapter 14:
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
N21 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
N21.0
Calculus in bladder
Billable
10
N21.1
Calculus in urethra
Billable
10
N21.8
Other lower urinary tract calculus
Billable
10
N21.9
Calculus of lower urinary tract, unspecified
Billable
      
Showing results for: {{searchResults.terms}}
More results: