Chapter 14: Diseases of Genitourinary System (N00-N99)

ICD 10 CM

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Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99), U07.1, U09.9

Chapter 2: Neoplasms (C00-D49)

Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Reserved for future guideline expansion

Chapter 4: Endocrine, Nutritional, and Metabolic Diseases (E00-E89)

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01 – F99)

Chapter 6: Diseases of the Nervous System (G00-G99)

Chapter 7: Diseases of the Eye and Adnexa (H00-H59)

Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95)

Chapter 9: Diseases of the Circulatory System (I00-I99)

Chapter 10: Diseases of the Respiratory System (J00-J99), U07.0

Chapter 11: Diseases of the Digestive System (K00-K95)

Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99)

Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)

Chapter 14: Diseases of Genitourinary System (N00-N99)

Chapter 15: Pregnancy, Childbirth, and the Puerperium (O00-O9A)

Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96)

Chapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Chapter 18: Symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

Chapter 19: Injury, poisoning, and certain other consequences of external causes (S00-T88

Chapter 20: External Causes of Morbidity (V00-Y99)

Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)

Chapter 22: Codes for Special Purposes (U00-U85)

Chapter 14: Diseases of Genitourinary System (N00-N99)

a. Chronic kidney disease

1) Stages of chronic kidney disease (CKD)

The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented endstage renal disease (ESRD).

If both a stage of CKD and ESRD are documented, assign code N18.6 only.

2) Chronic kidney disease and kidney transplant status

Patients who have undergone kidney transplant may still have some form of chronic kidney disease (CKD) because the kidney transplant may not fully restore kidney function.

Therefore, the presence of CKD alone does not constitute a transplant complication.

Assign the appropriate N18 code for the patient’s stage of CKD and code Z94.0, Kidney transplant status.

If a transplant complication such as failure or rejection or other transplant complication is documented, see section I.C.19.g for information on coding complications of a kidney transplant.

If the documentation is unclear as to whether the patient has a complication of the transplant, query the provider.

3) Chronic kidney disease with other conditions

Patients with CKD may also suffer from other serious conditions, most commonly diabetes mellitus and hypertension. The sequencing of the CKD code in relationship to codes for other contributing conditions is based on the conventions in the Tabular List.

Medycoding Notes