C91.40
BillableHairy cell leukemia not having achieved remission
Hairy cell leukemia not having achieved remission
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Hairy cell leukemia with failed remission
- Hairy cell leukemia NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(2)
Also Known As / Clinical Terms(170)
SNOMED CT
- Leukaemic reticuloendotheliosis of intra-abdominal lymph nodes93144003
- Leukemic reticuloendotheliosis of intra-abdominal lymph nodes93144003
- Leukaemic reticuloendotheliosis of intrapelvic lymph nodes93145002
- Leukemic reticuloendotheliosis of intrapelvic lymph nodes93145002
- Leukaemic reticuloendotheliosis of intrathoracic lymph nodes93146001
- Leukemic reticuloendotheliosis of intrathoracic lymph nodes93146001
- Leukaemic reticuloendotheliosis of lymph nodes of multiple sites93150008
- Leukemic reticuloendotheliosis of lymph nodes of multiple sites93150008
- Hairy cell leukaemia of spleen93151007
- Hairy cell leukemia of spleen93151007
- Leukaemic reticuloendotheliosis of spleen93151007
- Leukemic reticuloendotheliosis of spleen93151007
- Cancer metastatic to intrapelvic lymph nodes94350006
- Metastatic malignant neoplasm of intrapelvic lymph nodes94350006
- Metastatic malignant neoplasm to intrapelvic lymph nodes94350006
- Secondary malignant neoplasm of intrapelvic lymph nodes94350006
- Cancer metastatic to intrathoracic lymph nodes94351005
- Metastatic malignant neoplasm of intrathoracic lymph nodes94351005
- Metastatic malignant neoplasm to intrathoracic lymph nodes94351005
- Secondary malignant neoplasm of intrathoracic lymph nodes94351005
- Cancer metastatic to lymph nodes of lower limb94395004
- Metastatic malignant neoplasm of lymph nodes of lower limb94395004
- Metastatic malignant neoplasm to lymph nodes of lower limb94395004
- Secondary malignant neoplasm of lymph nodes of lower limb94395004
- Cancer metastatic to lymph nodes of multiple sites94396003
- Metastatic malignant neoplasm of lymph nodes of multiple sites94396003
- Metastatic malignant neoplasm to lymph nodes of multiple sites94396003
- Secondary malignant neoplasm of lymph nodes of multiple sites94396003
- Cancer metastatic to lymph nodes of upper limb94398002
- Metastasis to upper limb lymph node94398002
- Metastatic malignant neoplasm of lymph nodes of upper limb94398002
- Metastatic malignant neoplasm to lymph nodes of upper limb94398002
- Secondary malignant neoplasm of lymph nodes of upper limb94398002
- HCL - Hairy cell leukaemia118613001
- HCL - Hairy cell leukemia118613001
- Hairy cell leukaemia118613001
- Hairy cell leukaemia (clinical)118613001
- Hairy cell leukemia118613001
- Hairy cell leukemia (clinical)118613001
- LRE - Leukaemic reticuloendotheliosis118613001
- LRE - Leukemic reticuloendotheliosis118613001
- Leukaemic reticuloendotheliosis118613001
- Leukemic reticuloendotheliosis118613001
- Leukaemic reticuloendotheliosis of lymph nodes of head, face and neck188645002
- Leukemic reticuloendotheliosis of lymph nodes of head, face and neck188645002
- Leukaemic reticuloendotheliosis of lymph nodes of axilla and upper limb188648000
- Leukemic reticuloendotheliosis of lymph nodes of axilla and upper limb188648000
- Leukaemic reticuloendotheliosis of lymph nodes of inguinal region and lower limb188649008
- Leukemic reticuloendotheliosis of lymph nodes of inguinal region and lower limb188649008
- Hairy cell leukaemia variant277568007
- Hairy cell leukemia variant277568007
- Atypical hairy cell leukaemia307341004
- Atypical hairy cell leukemia307341004
- Leukaemic infiltration of skin in hairy-cell leukaemia404139001
- Leukemic infiltration of skin in hairy-cell leukemia404139001
- Leukaemia cutis404156009
- Leukaemic infiltration of skin404156009
- Leukemia cutis404156009
- Leukemic infiltration of skin404156009
UMLS
- HCLC0023443
- HCL - Hairy cell leukaemiaC0023443
- HCL - Hairy cell leukemiaC0023443
- Hairy Cell LeukemiaC0023443
- Hairy Cell LeukemiasC0023443
- Hairy cell leukaemiaC0023443
- Hairy cell leukaemia (clinical)C0023443
- Hairy cell leukemiaC0023443
- Hairy cell leukemia (clinical)C0023443
- Hairy cell leukemia (disorder)C0023443
- Hairy cell leukemia (morphologic abnormality)C0023443
- Hairy cell leukemia NOSC0023443
- LRE - Leukaemic reticuloendotheliosisC0023443
- LRE - Leukemic reticuloendotheliosisC0023443
- Leukaemic reticuloendotheliosisC0023443
- Leukemia, Hairy CellC0023443
- Leukemias, Hairy CellC0023443
- Leukemic ReticuloendotheliosesC0023443
- Leukemic ReticuloendotheliosisC0023443
- Leukemic reticuloendotheliosisC0023443
- Reticuloendothelioses, LeukemicC0023443
- Reticuloendotheliosis, LeukemicC0023443
- cell hairy leukemiaC0023443
- cells hairy leukemiaC0023443
- hairy T cell leukemiaC0023443
- hairy cell leukaemiaC0023443
- hairy cell leukemiaC0023443
- hairy-cell leukaemiaC0023443
- hairy-cell leukemiaC0023443
- leukaemia hairy cellC0023443
- leukemia hairy cellC0023443
- Hairy Cell Leukemia not Having Achieved RemissionC2854099
- Hairy cell leukemia not having achieved remissionC2854099
- Hairy cell leukemia with failed remissionC2854098
Clinical Terms
- Secondary malignant neoplasm of lymph nodes of lower limb
- Hairy cell leukaemia of spleen
- Metastatic malignant neoplasm to lymph nodes of lower limb
- Hairy cell leukaemia
- Hairy cell leukemia (clinical)
- Hairy cell leukemia (morphologic abnormality)
- Leukemic reticuloendotheliosis of spleen
- Metastatic malignant neoplasm of lymph nodes of lower limb
- HCL - Hairy cell leukemia
- Cancer metastatic to intrapelvic lymph nodes
- Secondary malignant neoplasm of lymph nodes of upper limb
- hairy T cell leukemia
- Hairy cell leukaemia (clinical)
- Leukemic reticuloendotheliosis
- Leukemic reticuloendotheliosis of lymph nodes of inguinal region and lower limb
- Metastatic malignant neoplasm of lymph nodes of multiple sites
- Leukemias, Hairy Cell
- Leukaemic reticuloendotheliosis of intrathoracic lymph nodes
- Leukemic reticuloendotheliosis of lymph nodes of axilla and upper limb
- Metastasis to upper limb lymph node
- HCL
- Atypical hairy cell leukaemia
- Atypical hairy cell leukemia
- HCL - Hairy cell leukaemia
- leukemia hairy cell
- cell hairy leukemia
- cells hairy leukemia
- Leukemic Reticuloendothelioses
- Metastatic malignant neoplasm to lymph nodes of upper limb
- Secondary malignant neoplasm of intrathoracic lymph nodes
- Reticuloendotheliosis, Leukemic
- Secondary malignant neoplasm of lymph nodes of multiple sites
- Leukaemic reticuloendotheliosis of lymph nodes of head, face and neck
- Leukaemic infiltration of skin in hairy-cell leukaemia
- Leukaemic infiltration of skin
- hairy-cell leukaemia
- Hairy cell leukemia variant
- Leukemic reticuloendotheliosis of lymph nodes of head, face and neck
- Leukemic reticuloendotheliosis of lymph nodes of multiple sites
- Hairy cell leukaemia variant
- Hairy cell leukemia
- Hairy Cell Leukemias
- Hairy cell leukemia with failed remission
- hairy-cell leukemia
- Leukaemic reticuloendotheliosis of spleen
- Metastatic malignant neoplasm to intrathoracic lymph nodes
- Leukemia, Hairy Cell
- Leukaemic reticuloendotheliosis
- Leukemic reticuloendotheliosis of intra-abdominal lymph nodes
- Leukemic reticuloendotheliosis of intrathoracic lymph nodes
- Metastatic malignant neoplasm of lymph nodes of upper limb
- Leukaemic reticuloendotheliosis of lymph nodes of inguinal region and lower limb
- Cancer metastatic to lymph nodes of multiple sites
- Cancer metastatic to lymph nodes of lower limb
- Secondary malignant neoplasm of intrapelvic lymph nodes
- Metastatic malignant neoplasm to lymph nodes of multiple sites
- Hairy cell leukemia of spleen
- Hairy cell leukemia (disorder)
- Leukaemic reticuloendotheliosis of lymph nodes of multiple sites
- LRE - Leukaemic reticuloendotheliosis
- Metastatic malignant neoplasm of intrapelvic lymph nodes
- Leukaemic reticuloendotheliosis of lymph nodes of axilla and upper limb
- Metastatic malignant neoplasm of intrathoracic lymph nodes
- LRE - Leukemic reticuloendotheliosis
- Leukaemic reticuloendotheliosis of intra-abdominal lymph nodes
- Leukemic reticuloendotheliosis of intrapelvic lymph nodes
- Cancer metastatic to lymph nodes of upper limb
- Metastatic malignant neoplasm to intrapelvic lymph nodes
- Leukaemic reticuloendotheliosis of intrapelvic lymph nodes
- leukaemia hairy cell
- Reticuloendothelioses, Leukemic
- Leukemic infiltration of skin
- Leukaemia cutis
- Leukemia cutis
- Hairy cell leukemia NOS
- Cancer metastatic to intrathoracic lymph nodes
- Leukemic infiltration of skin in hairy-cell leukemia
Frequently Asked Questions
What is the ICD-10 code for hairy cell leukemia not having achieved remission?
The ICD-10-CM code for hairy cell leukemia not having achieved remission is C91.40. The full clinical description is "Hairy cell leukemia not having achieved remission". C91.40 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C91.40 mean?
ICD-10-CM code C91.40 represents “Hairy cell leukemia not having achieved remission”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C91.40 a billable code?
Yes, C91.40 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C91.40 in?
C91.40 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C91.40?
C91.40 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of leukemia (Z85.6).
What SNOMED CT codes does C91.40 map to?
C91.40 maps to 18 SNOMED CT concepts: 307341004, 94350006, 94351005, 94395004, 94396003, and 13 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C91.40?
C91.40 is linked to 3 UMLS Concept Unique Identifiers: C0023443, C2854099, C2854098. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C91.40 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hairy cell leukemia not having achieved remission affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of C91.40?
There is no direct ICD-11 mapping available for C91.40 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.