Z85.038

Personal history of other malignant neoplasm of large intestine

Code Z85.038 designates a patient's personal history of a malignant neoplasm of the large intestine, specifically for types not elsewhere classified within the Z85.03 subcategory. This diagnosis is used when the patient has been definitively diagnosed with and treated for a large intestine cancer, and is now considered to be in remission or post-treatment surveillance, with no current evidence of active disease. It is crucial to understand that this code does not indicate the presence of an active malignancy; rather, it documents the previous occurrence of such a disease, which has significant implications for ongoing medical management, risk assessment, and screening protocols. Patients with a personal history of large intestine cancer are at an elevated risk for local recurrence, distant metastasis, or the development of new primary colorectal cancers. Therefore, robust surveillance strategies, often involving regular colonoscopies, imaging studies, and tumor marker monitoring, are essential. This historical information is vital for healthcare providers to tailor preventive care, lifestyle recommendations, and to interpret symptoms that might arise, distinguishing them from a new or recurring neoplastic process. The specific 'other malignant neoplasm' implies types beyond common adenocarcinomas specifically coded elsewhere under Z85.03 (e.g., excluding carcinoid tumors or those specified by colon segment like ascending or descending colon), necessitating careful documentation of the original pathology report to ensure accurate medical record-keeping and appropriate follow-up care plans.

Clinical Symptoms

  • Typically asymptomatic directly from the history of cancer
  • Symptoms, if present, relate to potential recurrence or development of new primary (e.g., changes in bowel habits, rectal bleeding, abdominal pain, unexplained weight loss, fatigue)
  • Anemia from occult blood loss (if recurrence)

Common Causes

  • Prior diagnosis and successful treatment of a malignant neoplasm in the large intestine
  • Underlying risk factors for the original large intestine cancer (e.g., genetic predispositions like Lynch syndrome or FAP, inflammatory bowel disease, diet, obesity, smoking, alcohol consumption, age)

Documentation & Coding Tips

Distinguish between active malignancy and personal history status.

Example: Patient is here for a 3-year surveillance visit following a right hemicolectomy for Stage II ascending colon adenocarcinoma. There is no clinical or radiographic evidence of recurrence. Adjuvant chemotherapy was completed 30 months ago. The condition is now considered a personal history as primary treatment is complete and the primary site is absent. Billing Focus: Clearly state that primary treatment is concluded. Risk Adjustment: Accurate capture of Z85.038 indicates a history of malignancy, which affects the HCC 12 risk category in some models.

Billing Focus: Documentation must specify the completion of definitive treatment including surgery, radiation, or chemotherapy to justify history code vs active code.

Specify the exact anatomical site of the prior malignancy within the large intestine.

Example: Review of surgical pathology from 2022 confirms a history of malignant neoplasm of the transverse colon, specifically at the hepatic flexure. The patient remains asymptomatic with a current CEA level of 1.2 ng/mL. Billing Focus: Site specificity confirms the use of Z85.038 rather than Z85.030 for rectum. Risk Adjustment: High specificity supports medical necessity for site-specific surveillance procedures like colonoscopy.

Billing Focus: Anatomical site specificity (e.g., transverse colon, descending colon) prevents the use of unspecified codes.

Document the status of surgical interventions and current anatomy.

Example: Status post-sigmoidectomy (2021) for sigmoid colon cancer. The patient reports stable bowel habits and no hematochezia. Physical exam reveals a well-healed midline scar. No palpable masses. Billing Focus: Status post-surgical documentation justifies the history code and supports the use of surgical history codes (e.g., Z98.890). Risk Adjustment: Chronic surgical status and history of malignancy are critical components of the patient's long-term risk profile.

Billing Focus: Inclusion of surgical history details (e.g., sigmoidectomy) validates the personal history status.

Link current surveillance activities to the historical diagnosis.

Example: The patient is scheduled for a surveillance colonoscopy at a 5-year interval per NCCN guidelines for history of cecal cancer. Last colonoscopy in 2021 showed no evidence of recurrence or metachronous lesions. Billing Focus: Linking the procedure (colonoscopy) to the history code Z85.038 and the follow-up code Z08 ensures medical necessity. Risk Adjustment: Consistent surveillance documentation demonstrates high-quality care for high-risk post-oncology patients.

Billing Focus: Connection between the history of malignancy and the encounter for follow-up (Z08) is required for correct sequencing.

Note any late effects or complications arising from the previous malignancy or its treatment.

Example: Patient presents with chronic diarrhea as a late effect of previous pelvic radiation and bowel resection for descending colon cancer. No signs of active malignancy. Bowel movements are managed with Loperamide. Billing Focus: Documenting late effects separately from the history code provides a more accurate representation of the patient's current health status. Risk Adjustment: Chronic complications such as radiation-induced bowel changes increase the complexity of the patient's profile.

Billing Focus: Differentiate between the history of cancer and current symptoms related to past treatment for more accurate billing.

Relevant CPT Codes

Related Diagnoses

Hierarchy